<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  FORM 10-K/A#1

(Mark One)
[X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934 [FEE REQUIRED]

For the fiscal year ended AUGUST 31, 1999
                                       OR
[ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE  ACT  OF  1934  [NO  FEE REQUIRED]

For the transition period from                       to

Commission file number: 0-1461

                             THE TODD-AO CORPORATION
             (Exact name of registrant as specified in its charter)

         DELAWARE                                    13-1679856
(State or other jurisdiction           (I.R.S. Employer Identification No.)
of incorporation)

           900 N. SEWARD STREET, HOLLYWOOD, CALIFORNIA           90038
            (Address of principal executive offices)          (Zip Code)

Registrant's telephone number, including area code: (323) 962-5304

Securities registered pursuant to Section 12(b) of the Act:     None

Securities registered pursuant to Section 12(g) of the Act:

 Title of each class
----------------------
COMMON STOCK, CLASS A,
   $ .01 PAR VALUE

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports) and (2) has been subject to such filing
requirements for the past 90 days.

           Yes       X          No
                 --------            --------

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

The aggregate market value of voting stock held by non-affiliates at November
11, 1999 was approximately $92,200,000.

The number of shares of common stock outstanding at November 11, 1999 was:
8,136,653 Class A Shares and 1,747,178 Class B Shares.

                       DOCUMENTS INCORPORATED BY REFERENCE

None


<PAGE>

                                   SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.


                                                  The Todd-AO Corporation

      January 11, 1999                   By          /s/ Silas R. Cross
                                           ------------------------------------
                                                       Silas R. Cross
                                                  Vice President, Treasurer
                                               and Principal Accounting Officer


         Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
Registrant and in the capacities and on the dates indicated.

<TABLE>

<S><C>
January 11, 1999  By /s/   Salah M. Hassanein       January 11, 1999   By /s/    Marshall Naify
                         ----------------------                              ----------------------
                            Salah M. Hassanein                                   Marshall Naify
                         Director, President and                                Chairman of the
                         Chief Executive Officer                               Board of Directors


January 11, 1999  By /s/     David P. Malm          January 11, 1999   By /s/    Richard Hassanein
                         -------------------                                 -----------------------
                             David P. Malm                                       Richard Hassanein
                                Director                                         Vice President and
                                                                                      Director


January 11, 1999  By /s/    Sydney Pollack          January 11, 1999   By /s/    Michael S. Naify
                         -------------------                                 -----------------------
                            Sydney Pollack                                       Michael S. Naify
                               Director                                              Director


January 11, 1999  By /s/   Robert I. Knudson        January 11, 1999   By /s/     Zelbie Trogden
                         -------------------                                 -----------------------
                           Robert I. Knudson                                      Zelbie Trogden
                                Director                                             Director


January 11, 1999  By /s/  Herbert L. Hutner         January 11, 1999   By /s/    A. Frank Pierce
                         -------------------                                 ----------------------
                          Herbert L. Hutner                                      A. Frank Pierce
                              Director                                              Director


January 11, 1999  By /s/     David Haas
                         -------------------
                             David Haas
                               Director

</TABLE>

                                                 24

<PAGE>


                             THE TODD-AO CORPORATION

                        CONSOLIDATED STATEMENTS OF INCOME
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                  YEARS ENDED AUGUST 31,
                                                                       -----------------------------------------
                                                                            1997         1998           1999
                                                                       ------------  ------------  -------------
<S>                                                                    <C>           <C>           <C>

REVENUES......................................................           $  78,971     $ 102,614      $ 118,517
                                                                       ------------  ------------  -------------
COSTS AND EXPENSES:
Operating costs and other expenses............................              61,755        83,034         96,890
Depreciation and amortization.................................               7,128        10,685         12,829
Interest......................................................                 920         1,807          3,617
Equipment lease expense - net.................................                 265           245          1,494
Restructuring and other charges:
   Equipment..................................................                  --         2,414             --
   Lease costs................................................                  --           353             --
   Loss on equipment lease commitments........................                  --            --            788
Other (income) expense - net..................................                 (50)         (573)           413
                                                                      ------------  ------------  -------------
Total costs and expenses......................................              70,018        97,965        116,031
                                                                      ------------  ------------  -------------
INCOME BEFORE PROVISION FOR INCOME TAXES
   AND CHANGE IN ACCOUNTING PRINCIPLE.........................               8,953         4,649          2,486
  PROVISION FOR INCOME TAXES..................................               2,948         1,230            880
                                                                      ------------  ------------  -------------
INCOME BEFORE CHANGE IN
   ACCOUNTING PRINCIPLE.......................................               6,005         3,419          1,606

CHANGE IN ACCOUNTING PRINCIPLE,
   NET OF INCOME TAXES OF $150................................                  --            --           (293)
                                                                      ------------  ------------  -------------
NET INCOME....................................................          $    6,005      $  3,419       $  1,313
                                                                      ============  ============  =============

Net income available to common stockholders...................          $    6,005      $  3,419       $  1,313

Effect of dilutive securities:
   5% convertible debentures..................................                  47           302             --
                                                                      ------------  ------------  -------------
Net income available to common stockholders
   plus assumed conversions...................................          $    6,052      $  3,721       $  1,313
                                                                      ------------  ------------  -------------
WEIGHTED AVERAGE SHARES
   OUTSTANDING - BASIC........................................           9,539,312     9,987,429      9,570,187
Effect of dilutive securities:
   Stock options..............................................             549,681       519,565        262,427
   5% convertible debentures..................................             118,510       711,057             --
                                                                      ------------  ------------  -------------
WEIGHTED AVERAGE SHARES
   OUTSTANDING - DILUTED......................................          10,207,503    11,218,051      9,832,614
                                                                      ------------  ------------  -------------
NET INCOME PER COMMON SHARE:
   Income before change in accounting principle - Basic.......          $     0.63      $   0.34       $   0.17
   Change in accounting principle.............................                  --            --          (0.03)
                                                                      ------------  ------------  -------------
   Net income - Basic.........................................          $     0.63      $   0.34       $   0.14
                                                                      ============  ============  =============

   Income before change in accounting principle - Diluted.....          $     0.59      $   0.33       $   0.16
   Change in accounting principle.............................                  --            --          (0.03)
                                                                      ------------  ------------  -------------
   Net income - Diluted.......................................          $     0.59      $   0.33       $   0.13
                                                                      ============  ============  =============

</TABLE>

                 See notes to consolidated financial statements.

                                       34