Both American and British stars — including Robin Williams, Anne Hathaway, Helen Mirren and Jason Isaacs — will be among the presenters at the 2011 Britannia Awards, the British Academy of Film and Television Arts Los Angeles announced Monday.Ceremony will take place Nov. 30 at the BevHilton Hotel in Beverly Hills and will air on TV Guide Network Dec. 4. Alan Cumming will serve as master of ceremonies. The 2011 honorees are Warren Beatty (Stanley Kubrick Britannia Award for Excellence in Film), Helena Bonham Carter (Britannia Award for British Artist of the Year), John Lasseter (Cubby Broccoli Britannia Award for Worldwide Contribution to Filmed Entertainment), Ben Stiller (Charlie Chaplin Britannia Award for Excellence in Comedy), and David Yates (John Schlesinger Britannia Award for Excellence in Directing). The Britannia Awards are BAFTA Los Angeles’ highest accolade, a celebration of achievements honoring individuals and companies that have dedicated their careers or corporate missions to advancing the entertainment arts. Proceeds from the gala ceremony support BAFTA Los Angeles’ ongoing education, scholarship, community outreach and archival projects.