Exhibit 21.1

|Subsidiaries of Regal Entertainment Group       |  | Jurisdiction of
Organization
|----------------------------------------------- |  | ----------------------------
|Act III Cinemas, Inc.                           |  | Delaware                    
|Act III Inner Loop Theatres, Inc.               |  | Delaware                    
|Act III Theatres, Inc.                          |  | Delaware                    
|A 3 Theatres of San Antonio, Ltd.               |  | Texas                       
|A 3 Theatres of Texas, Inc.                     |  | Delaware                    
|Bagley Building Company                         |  | Michigan                    
|Beth Page Theatre Co. Inc.                      |  | New York                    
|Broadway Cinema, Inc.                           |  | Oregon                      
|CDP Limited Liability Company                   |  | California                  
|Clark-Regal, LLC                                |  | California                  
|Cobb Finance Corp.                              |  | Alabama                     
|Eastgate Theatre, Inc.                          |  | Oregon                      
|Edwards Theatres, Inc.                          |  | California                  
|Florence Theatre Corporation                    |  | California                  
|Frederick Cinemas, Inc.                         |  | Maryland                    
|General American Theatres, Inc.                 |  | Oregon                      
|Green Hills Commons, LLC                        |  | Tennessee                   
|Hoyts Cinemas Corporation                       |  | Delaware                    
|Interstate Theatre Corporation                  |  | Massachusetts               
|J.R. Cinemas, Inc.                              |  | Oregon                      
|King Reavis Amusement Company                   |  | California                  
|Magnolia Amusement Company                      |  | Arkansas                    
|Morgan Edwards Theatre Corporation              |  | California                  
|Multimatic Displays, Inc.                       |  | New York                    
|Next Generation Network, Inc.                   |  | Delaware                    
|Olympus Pointe Theatre Center Investors, LLC    |  | California                  
|Orix RAM Montgomery Venture General Partnership |  | Illinois                    
|RAM/U-KOP, LLC                                  |  | Delaware                    
|R and S Theaters, Inc.                          |  | Mississippi                 
|R.C. Cobb, Inc.                                 |  | Alabama                     
|Regal Cinemas Corporation                       |  | Delaware                    
|Regal Cinemas Group, Inc.                       |  | Delaware                    
|Regal Cinemas Holdings, Inc.                    |  | Delaware                    
|Regal Cinemas, Inc.                             |  | Tennessee                   
|Regal CineMedia Corporation                     |  | Delaware                    
|Regal Entertainment Holdings, Inc.              |  | Delaware                    
|Regal Investment Company                        |  | Delaware                    
|Rio Rich Theatres Ventures                      |  | California                  
|San Francisco Theatres, Inc.                    |  | California                  
|Siam UATC Company Limited Thailand Corp.        |  | Thailand                    
|Staten Theatre Group                            |  | New York                    
|Staten Theatre Group II                         |  | New York                    
|TEMT Alaska, Inc.                               |  | Alaska                      
|The Turp Company                                |  | California                  
|Trumball Theatre Corp.                          |  | Connecticut                 
|UAGG Theatre Operating Corp.                    |  | New York                    
|UA International Property Holding, Inc.         |  | Colorado                    
|UA Mexico Holdings, S.A. de C.V.                |  | Mexico                      
|U.A.P.R., Inc.                                  |  | Delaware                    
|UA Property Holding II, Inc.                    |  | Colorado                    
|                                                |  |                             

---

|UA SHOR LLC                                       |  | Delaware  
|------------------------------------------------- |  | ----------
|United Artists International Management Company   |  | Colorado  
|United Artists/Pacific Media Joint Venture        |  | Colorado  
|United Artists Properties I Corp.                 |  | Colorado  
|United Artists Properties II Corp.                |  | Colorado  
|United Artists Realty Company                     |  | Delaware  
|United Artists Singapore Theatres Pte. Ltd.       |  | Singapore 
|United Artists Theatre Circuit, Inc.              |  | Maryland  
|United Artists Theatre Company                    |  | Delaware  
|United Artists Theatre Group, LLC                 |  | Delaware  
|United Cinema Corporation                         |  | California
|United Film Distribution Company of South America |  | Delaware  
|United Stonestown Corporation                     |  | California
|Vogue Realty Company                              |  | California

2

---

QuickLinks