I took the time (upon request from a friend) to compile all of the male-female (and reverse) transformation scenes in the 1995 comedy version of "Dr. Jekyll and Mr. Hyde" (aptly titled "Dr. Jekyll and Ms. Hyde.").
In this movie, scientist Dr. Richard Jacks (Tim Daly), inherits the scientific journals of his great-grandfather, who turns out to be one Dr. Henry Jekyll. In an attempt to isolate the chromosome that is responsible for one's evil, and adds estrogen to make it a little less evil, he creates a serum...and drinks it. And just when he didn't think it would work...along comes smarmy corporate shark, Helen Hyde (Sean Young), his "Dark side."
This is essentially a "Bad Movie," but I saw it recently, and fell in love with it (I've always liked Tim Daly sine Wings, but I've never liked Sean Young - especially since I saw "Ace Ventura").
Enjoy - more clips from the movie to come!!