Ah, but you see Goldblum really did star in the Pittsburgh production of "The Music Man", the young singer he is engaged to in the film really was his fiancee at the time. That is his real mother, but not his step father.
It's a nice whimsical and light walk through the send up of egos and art, levels of reality, crafted or improvised. Here is Goldblum, a man who essentially has played one personality in all his roles, and now in this local no-pay theater production is finding that this personality, this "eccentric, flighty Jeff Goldblum" will not cut it in the part of Harold Hill. He's got to conjure up something that Hollywood has beaten out of him. Does he succeed?
The movie suggests he does, but in reality his performance was seen as off kilter, then again that is just a perception...