Patti's Luck — Susan Saunders

Stephanie invites a new girl in school, Patti, to the Friday-evening sleepovers she has with Lauren and Kate. During a TV movie, Kate imitates an actress and puts a curse on Patti and it seems to work. Patti can't do anything right. The act of curing Patti involves a couple of false starts, but her luck does turn, and it benefits them all.