Bell Book and Candle 1958
Gillian Holroyd, a witch living in New York with her familiar cat Pyewacket, decides she needs the help of a handsome publisher named Shep Henderson. She learns that the man she went to college with, Merle Kitridge, is set to marry Shep. Gillian casts a spell on Shep, but her powers are threatened by a stronger force: love!