I can't write; my stomach hurts from laughing. The world is searching for Zelig when someone spy's a suspicious face in a newsreel; a small face peeking out from behind Adolf Hitler giving a speech to the masses. And as they pan in for a closer look it is Woody, hiding behind Hitler. His face is superimposed on the 1930's newsreel. What a riot.
Woody is a guy whose personality is so subservient that he eventually begins to take on the personality traits of whomever he is exposed to. They do the whole movie in faux documentery style with footage from the 1930's doctored by his appearence's in varous situations. Hard to get a sense of what it is by explaining; you have to see it.