I know what I'll be watching this weekend as a palate cleanser after Walking with Dinosaurs. It will be Pterodactyl Woman from Beverly Hills (from Troma, of course).
This gem is from 1997, and it's awesomely terrible in every respect. According to IMDB:
Pixie is cursed with turning into a Pterodactyl when her husband is caught messing with bones on an ancient burial ground. Her husband, children, friends, and neighbours must come to terms with Pixie's new "look". Her only chance to return to her normal state is to find the shaman who inflicted the curse on her.
h/t Brian Switek