Oscar winner Julia Roberts was once left stunned on a movie set when an unnamed co-star went "bananas" and tried to run their director over.

The actress refuses to name the offender, or what film she was working on when the actor flipped out, but she admits it's a bizarre filmmaking memory she'll never forget.

She recalls, "We're shooting and this person got annoyed at people talking while we're shooting. He yells, 'Shut the f**k up. What the f**k is wrong with you people?' Then an acorn falls from a tree, and he says, 'What the f**k was that? Did you not hear me?' Then he really goes nutso and starts attacking the director, who was the nicest man on the planet. Then he gets in his car and he tells his driver, 'Run him down. Run him f**king down.'" (IG/WNVLET/KL)

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