Think the Oscar for Best Picture is a two-horse race between Ben Affleck's Argo and Steven Spielberg's Lincoln? Think again. Though the bookmakers have the Iranian hostage drama just in front of the historical epic, there's other film to be considered here. Don't be surprised should Life of Pi or Silver Linings Playbook scoop the major prize on Sunday evening - stranger things have happened at the Academy Awards.

Often, the winner of the evening's most prestigious award picks up numerous other golden statuettes. Argo is unlikely to win a string of gongs, Lincoln could, though Ang Lee's 3-D drama is expected to dominate the technical categories, while Jennifer Lawrence looks a shoo-in for Best Actress. There's been plenty of audible gasps and high pitched screams at the Academy Awards when the presenter of Best Picture reads out the winning movie: here's just a few;

Crash, directed by Paul Haggis (2004)

In perhaps one of the biggest shocks in Oscars history, Paul Haggis' drama snatched Best Picture away from the massive favourite Brokeback Mountain. The film had caused behind-the-scenes drama thanks to the number of producers eligible for the win, though the movie - about a group of Los Angeles citizens who live separate lives though collide in interweaving stories - won the top award. Jack Nicholson - the presenter of the Best Picture prize - summed it up on the night. You could almost hear him framing the word 'Crash' as a question, before mouthing, "WOAH" as the camera remained on him.

Shakespeare in Love, directed by John Madden (1998)

Another pretty bizarre Best Picture win. The movie, which charted the life of a young Shakespeare inspired to write one of his most famous plays, was the big outsider going into the Oscars in 1998. Of course, Steven Spielberg's Saving Private Ryan would win Best Picture, surely? It seemed the Academy even assumed Spielberg would win, hiring Indiana Jones himself Harrison Ford to present the award. In the end, it was Harvey Weinstein's movie that sailed to victory following an aggressive advertising campaign. 

Rocky, directed by John G. Avildsen (1977)

Rocky was very much the third favourite heading into the Oscars in 1977, with heavyweights All The President's Men and Taxi Driver assumed to be battling in a two-horse race. This was the year that would officially begin Martin Scorsese's reign as the unluckiest director in Hollywood, and his gritty drama was usurped, but not by ATPM. The underdog story Rocky romped home, with Sylvester Stallone himself looking absolutely stunned with the result.