Funny Stand In Story
They film a lot of movies up my way and my buddy doesn't have his union card. He usually gets in for stand in parts and shows up in movies for long enough to be recognized.
In The Fighter he was a prison guard. The scene where Christian Bale gets into a fight in the prison he went and ad-libbed grabbing Bale and stopping the fight. The director yelled cut immediately and said what are you doing? He just said would a prison guard stand there, wouldn't he break up the fight? The director said that was great do it again. One of his longest scenes in any movie was of his creation.