Document:

EXHIBIT 10.42

               TWELFTH AMENDED AND RESTATED JOINT FILING AGREEMENT
                          PURSUANT TO RULE 13d-1(k)(1)

This Twelfth Amended and Restated Agreement is made pursuant to Rule 13d-1(k)(1)
under the Securities Exchange Act of 1934, as amended (the "Act") by and among
the parties listed below, each referred to herein as a "Joint Filer." The Joint
Filers agree that a statement of beneficial ownership as required by Section
13(d) of the Act and the Rules thereunder may be filed on each of their behalf
on Schedule 13D and that said joint filing may thereafter be amended by further
joint filings. The Joint Filers state that they each satisfy the requirements
for making a joint filing under Rule 13d-1.

Dated: December 10, 2008

                     [remainder of page intentionally blank]

<PAGE>

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
date first above written.

                                  Flag Luxury Riv, LLC

                                  By: FX Luxury Realty, LLC
                                      ------------------------------------------
                                      Its sole member

                                      By: FX Real Estate and Entertainment, Inc.
                                          --------------------------------------
                                          Its Managing Member

                                          By: /s/ Paul Kanavos
                                              ----------------------------------
                                          Name: Paul Kanavos
                                          Title: President

                                  RH1, LLC

                                  By: FX Luxury Realty, LLC
                                      ------------------------------------------
                                      Its sole member

                                       By: FX Real Estate and Entertainment Inc.
                                           -------------------------------------
                                           Its Managing Member

                                           By: /s/ Paul Kanavos
                                               ---------------------------------
                                           Name: Paul Kanavos
                                           Title: President

                                  FX Luxury Realty, LLC

                                       By: FX Real Estate and Entertainment Inc.
                                           -------------------------------------
                                           Its Managing Member

                                           By: /s/ Paul Kanavos
                                               ---------------------------------
                                           Name: Paul Kanavos
                                           Title: President

                                  FX Real Estate and Entertainment Inc.

                                  By: /s/ Paul Kanavos
                                      ------------------------------------------
                                  Name: Paul Kanavos
                                  Title: President

<PAGE>

                                    Paul Kanavos

                                    /s/ Paul Kanavos
                                    --------------------------------------------

<PAGE>

                                    Robert F.X. Sillerman

                                    /s/ Robert F.X. Sillerman
                                    --------------------------------------------

<PAGE>

                                    Brett Torino

                                    /s/ Brett Torino
                                    --------------------------------------------

<PAGE>

                                    Barry A. Shier

                                    /s/ Barry A. Shier
                                    --------------------------------------------

<PAGE>

                                    Thomas P. Benson

                                    /s/ Thomas P. Benson
                                    --------------------------------------------

<PAGE>

                                    Mitchell J. Nelson

                                    /s/ Mitchell J. Nelson
                                    --------------------------------------------

<PAGE>

                                    David M. Ledy

                                    /s/ David Ledy
                                    --------------------------------------------

<PAGE>

                                    Harvey Silverman

                                    /s/ Harvey Silverman
                                    --------------------------------------------

<PAGE>

                                    Bryan E. Bloom

                                    /s/ Bryan E. Bloom
                                    --------------------------------------------

<PAGE>

                                    Michael J. Meyer

                                    /s/ Michael J. Meyer
                                    --------------------------------------------EXHIBIT 10.01

               JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1)

This Agreement is made pursuant to Rule 13d-1(k)(1) under the Securities
Exchange Act of 1934, as amended (the "Act") by and among the parties listed
below, each referred to herein as a "Joint Filer." The Joint Filers agree that a
statement of beneficial ownership as required by Section 13(d) of the Act and
the Rules thereunder may be filed on each of their behalf on Schedule 13D, and
that said joint filing may thereafter be amended by further joint filings. The
Joint Filers state that they each satisfy the requirements for making a joint
filing under Rule 13d-1.

Dated: December 10, 2008

                     [remainder of page intentionally blank]

<PAGE>

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
date first above written.

                                   Rivacq LLC

                                   By: SOF U.S. Hotel Co-Invest Holdings, L.L.C.
                                       -----------------------------------------

                                       By: SOF-VII U.S. Hotel Holdings, L.L.C.
                                           -------------------------------------

                                           By: /s/ Barry S. Sternlicht
                                               ---------------------------------
                                               Name: Barry S. Sternlicht
                                               Title: Chief Executive Officer

                                       By: I-1/I-2 U.S. Holdings, L.L.C.
                                           -------------------------------------

                                           By: /s/ Barry S. Sternlicht
                                               ---------------------------------
                                           Name: Barry S. Sternlicht
                                           Title: Chief Executive Officer

                                   SOF U.S. Hotel Co-Invest Holdings, L.L.C.

                                   By: SOF-VII U.S. Hotel Holdings, L.L.C.
                                       -----------------------------------------

                                       By: /s/ Barry S. Sternlicht
                                           -------------------------------------
                                       Name: Barry S. Sternlicht
                                       Title: Chief Executive Officer

                                   By: I-1/I-2 U.S. Holdings, L.L.C.
                                       -----------------------------------------

                                       By: /s/ Barry S. Sternlicht
                                           -------------------------------------
                                       Name: Barry S. Sternlicht
                                       Title: Chief Executive Officer

                                   SOF-VII U.S. Hotel Holdings, L.L.C.

                                   By: /s/ Barry S. Sternlicht
                                       -----------------------------------------
                                   Name: Barry S. Sternlicht
                                   Title: Chief Executive Officer

                                   I-1/I-2 U.S. Holdings, L.L.C.

                                   By: /s/ Barry S. Sternlicht
                                       -----------------------------------------
                                   Name: Barry S. Sternlicht
                                   Title: Chief Executive Officer

<PAGE>

                                   Starwood Global Opportunity Fund VII-A, L.P.

                                   By: SOF-VII Management, L.L.C.
                                       -----------------------------------------
                                        Its General Partner

                                        By: Starwood Capital Group Global,
                                            L.L.C.
                                            ------------------------------------
                                            Its General Manager

                                            By: /s/ Barry S. Sternlicht
                                                --------------------------------
                                                Name: Barry S. Sternlicht
                                                Title: Chief Executive Officer

                                   Starwood Global Opportunity Fund VII-B, L.P.

                                   By: SOF-VII Management, L.L.C.
                                       -----------------------------------------
                                       Its General Partner

                                       By: Starwood Capital Group Global, L.L.C.
                                           -------------------------------------
                                           Its General Manager

                                           By: /s/ Barry S. Sternlicht
                                               ---------------------------------
                                               Name: Barry S. Sternlicht
                                               Title: Chief Executive Officer

                                   Starwood U.S. Opportunity Fund VII-D, L.P.

                                   By: SOF-VII Management, L.L.C.
                                       -----------------------------------------
                                       Its General Partner

                                       By: Starwood Capital Group Global, L.L.C.
                                           -------------------------------------
                                           Its General Manager

                                           By: /s/ Barry S. Sternlicht
                                               ---------------------------------
                                               Name: Barry S. Sternlicht
                                               Title: Chief Executive Officer

<PAGE>

                                   Starwood U.S. Opportunity Fund VII-D-2, L.P.

                                   By: SOF-VII Management, L.L.C.
                                       -----------------------------------------
                                       Its General Partner

                                       By: Starwood Capital Group Global, L.L.C.
                                           -------------------------------------
                                           Its General Manager

                                           By: /s/ Barry S. Sternlicht
                                               ---------------------------------
                                           Name: Barry S. Sternlicht
                                           Title: Chief Executive Officer

                                   Starwood Capital Hospitality Fund I-1, L.P.

                                   By: SCG Hotel Management, L.L.C.
                                       -----------------------------------------
                                        Its General Partner

                                        By: Starwood Capital Group Global,
                                            L.L.C.
                                            ------------------------------------
                                        Its General Manager

                                             By: /s/ Barry S. Sternlicht
                                                 -------------------------------
                                                 Name: Barry S. Sternlicht
                                                 Title: Chief Executive Officer

                                   Starwood Capital Hospitality Fund I-2, L.P.

                                   By: SCG Hotel Management, L.L.C.
                                       -----------------------------------------
                                        Its General Partner

                                        By: Starwood Capital Group Global,
                                            L.L.C.
                                            ------------------------------------
                                        Its General Manager

                                            By: /s/ Barry S. Sternlicht
                                                --------------------------------
                                                Name: Barry S. Sternlicht
                                                Title: Chief Executive Officer

<PAGE>

                                   SOF-VII Management, L.L.C.

                                   By: Starwood Capital Group Global, L.L.C.
                                       -----------------------------------------
                                       Its General Manager

                                       By: /s/ Barry S. Sternlicht
                                           -------------------------------------
                                           Name: Barry S. Sternlicht
                                           Title: Chief Executive Officer

                                   SCG Hotel Management, L.L.C.

                                   By: Starwood Capital Group Global, L.L.C.
                                       -----------------------------------------
                                       Its General Manager

                                        By: /s/ Barry S. Sternlicht
                                            ------------------------------------
                                        Name: Barry S. Sternlicht
                                        Title: Chief Executive Officer

                                   Starwood Capital Group Global, LLC

                                   By: /s/ Barry S. Sternlicht
                                       -----------------------------------------
                                   Name: Barry S. Sternlicht
                                   Title: Chief Executive Officer

                                   Barry S. Sternlicht

                                   /s/ Barry S. Sternlicht
                                   ---------------------------------------------

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