In the scene where Matthew Broderick first meets Penelope Ann Miller at her father's home, she claims that the Mona Lisa over the fireplace is the original - I don't think so. The original Mona Lisa was pretty small, roughly the size of an 8 1/2 x 11 piece of paper, not including frame. I don't know why everyone thinks that that painting is so huge, as this is NOT the only movie to have made that mistake...