London, March 6 (IANS) Hollywood actor Matt Damon is threatening to steal the show at the Oscars by throwing a tantrum if he doesn't win the best supporting actor honour for his film 'Invictus'.

'I'm waiting for the losing actor to have the courage to just go 'F***' when the camera pans on him. If I have the balls you'll see me do it on March 7,' hollywood.com quoted him as saying.

Damon has already accepted he won't win and is instead contesting with co-stars on showing a brave face.

'I emailed 'The Lovely Bones' actor Stanley Tucci. We have a contest to see who could look more magnanimous when Christoph Waltz' 'Inglorious Basterds' wins!'