Penn writes angry letter to South Park duo

Sean Penn is furious with South Park creators Trey Parker and Matt Stone for ridiculing his stance against the war in Iraq in their latest film.

The Oscar-winning actor, 44, opposes the Iraq war, and he is annoyed with the movie Team America: World Police, which he claims portrays his pacifist views as stupid.

Penn has written to the pair about his complaints, ending the angry letter with "f*** off".

The controversial movie is already in trouble for showing a simulated sex scene featuring puppets.