Additional presenters will include Simon Baker, Drew Barrymore, Glenn Close, Sasha Baron Cohen, Cameron Diaz, Aaron Eckhart, Laurence Fishburne, Ricky Gervais, Jake Gyllenhall, Salma Hayek, Blake Lively, Jennifer Lopez, Hayden Panettiere, Amy Poehler, Chris Rock, Seth Rogen, Martin Scorsese, and The Jonas Brothers.
As previously reported, Frost/Nixon earned nominations for Best Picture (Drama), Best Director for Ron Howard, Best Actor in a Drama for Frank Langella, and Best Screenplay for Peter Morgan.
Howard's competition include theater veterans Stephen Daldry and Sam Mendes, whose respective films, The Reader, which earned a Best Screenplay nod for David Hare, and Revolutionary Road are also Best Picture nominees. That field is rounded out by The Curious Case of Benjamin Button and Slumdog Millionaire.
Langella will face off against fellow Broadway veteran Sean Penn (Milk), along with Brad Pitt (The Curious Case of Benjamin Button), Leonardo DiCaprio (Revolutionary Road), and Mickey Rourke (The Wrestler).
Doubt received nominations for all four stars; Meryl Streep, and Philip Seymour Hoffman, Amy Adams, and Viola Davis, all of whom are nominated in the supporting actress and actor categories, as well as a Best Screenplay nod for John Patrick Shanley.
Mamma Mia! was nominated for Best Picture (Musical or Comedy) in a field where all five nominees were directed by theater folk: Ethan and Joel Coen's Burn After Reading, Mike Leigh's Happy Go-Lucky, Martin McDonagh's In Bruges, and Woody Allen's Vicky Cristina Barcelona. Streep also received a Best Actress nomination (Musical or Comedy)
Other film acting nominees include Anne Hathaway (Rachel Getting Married), Kristin Scott Thomas (I've Loved You So Long), Frances McDormand (Burn After Reading), Ralph Fiennes (The Duchess), Emma Thompson (Last Chance Harvey), Dustin Hoffman (Last Chance Harvey), Rebecca Hall (Vicky Cristina Barcelona), and Marisa Tomei (The Wrestler).For a list of TV nominees, click here.