Here are 6 facts about the Oscars you may not have known!
1. Lady Gaga took her stage name from the Queen song Radio Gaga, as she said she "adored" the band.
But more than a decade after shooting to fame, she finds herself effectively up against them. Her movie A Star Is Born faces competition in the best picture category from Queen biopic Bohemian Rhapsody.
2. This is the third time that Amy Adams and Christian Bale have starred in a film together and both received Oscar nominations for it.
They appeared alongside each other in The Fighter (2010) and American Hustle (2013), and now both have nods this year for their roles in Vice. Only Bale has won, however - taking home best supporting actor for The Fighter.
3. This is the first year Netflix has scored a nomination for best picture.
Their nod comes in the shape of Roma - which is directed by Alfonso Cuaron. It's had a hugely successful awards season so far - including picking up the top prize at the Baftas earlier this month.
4. All four of the acting prizes this year could be for portrayals of lesbian, gay or bisexual characters
The winning actors at the Baftas all were - Olivia Colman and Rachel Weisz played lovers in The Favourite, Mahershala Ali's portrayal of Don Shirley included references to his homosexual encounters, while Rami Malek played Freddie Mercury, who was bisexual. Last year, the winners of the four acting categories were exactly the same at the Baftas and the Oscars.
5. Incredibles 2 is nominated for best animated feature this year.
But sequels have rarely won in this category since the Oscars introduced it in 2001. The last one that did was 2010's Toy Story 3. (Despite its misleading title, 2014's Big Hero 6 wasn't a sequel.) Toy Story had left an 11-year gap between the second installment and the third - the long absence perhaps allowing the Academy's heart to grow fonder. Incredible 2 had an even longer absence - with 14 years between the first and second films. Could that work in its favor?
6. Christian Bale shares a birthday with Dick Cheney, who he portrays in Vice.
But it's fair to say Bale doesn't share the same politics as the former Republican vice president. While accepting his Golden Globe award last month, Bale said: "Thank you to Satan for giving me inspiration on how to play this role."