The Oscars are happening this Sunday, and before we suspect Leo DiCaprio might actually lose once more, know that his loss isn't probably the biggest upset to happen at the Oscars. Here are some others that may be bigger:

14th Academy Awards Best Picture (1942): Citizen Kane losing Best Picture to How Green Was My Valley

63rd Academy Awards Best Picture and Best Director (1991): Goodfellas loses to Dances with Wolves

Martin Scorsese lost both Best Picture and Best Director to Kevin Costner’s Dances with Wolves.

67th Academy Awards Best Picture (1995): The Shawshank Redemption beaten by Forrest Gump

68th Academy Awards Best Picture (1996): Se7en not nominated, Braveheart wins

Braveheart won both Best Picture and Best Director over Apollo 13. But David Fincher’s classic cop horror thriller Se7en wasn’t even nominated.

69th Academy Awards Best Picture (1997): Fargo beaten by The English Patient

71st Academy Awards Best Picture (1999): The Truman Show not nominated, Shakespeare in Love wins.

Shakespeare in Love, not only beat Saving Private Ryan but The Truman Show with its fantastically original premise and a brilliant performance from Jim Carrey. The Truman Show wasn’t even nominated.

74th Academy Awards Best Picture and Best Director (2002): Memento not nominated and A Beautiful Mind wins

Memento wasn’t even nominated.....

75th Academy Awards Best Picture (2003): Chicago Wins…

It was up against Gangs of New York and The Pianist and it unbelievably won.

75th Academy Awards Best Actor (2004): Bill Murray doesn’t win

He lost to Sean Penn in Mystic River. Boooooo.

83rd Academy Awards Best Picture (2011): The Kings Speech beats Inception

The visually stunning and complex film Inception lost out to The King’s Speech.