Bell Book And Candle (1958) -

However, the "fun" quickly turns complicated as Gillian finds herself genuinely falling for Shep. This presents a magical crisis: a witch who falls in love loses her supernatural powers. As their romance deepens, she is torn between her identity as a witch and her desire for a normal human life.

Gillian’s interest is piqued by her neighbor, the handsome publisher ( James Stewart ). When she discovers Shep is engaged to her old college rival, Merle Kittridge , Gillian decides to have a bit of fun. On Christmas Eve, she uses Pyewacket to cast a powerful love spell. By morning, Shep is hopelessly enamored with Gillian and abruptly breaks off his engagement.

The secret begins to unravel when Gillian's warlock brother, ( Jack Lemmon ), begins collaborating with an eccentric author, Sidney Redlitch , on a book about the underground society of New York witches. Fearing Shep will discover her nature through the book, Gillian hexes the manuscript, but her guilt finally leads her to confess the truth. Bell Book and Candle (1958)

regarding Kim Novak's real-life bond with Pyewacket

for the eccentric supporting cast (like Aunt Queenie) However, the "fun" quickly turns complicated as Gillian

In a snowy, jazz-infused Greenwich Village, ( Kim Novak ) lives a life of quiet boredom. To the world, she is the proprietor of a primitive art gallery; in secret, she is a modern-day witch who shares her home with her Siamese familiar, Pyewacket .

If you'd like more details on , I can provide: Gillian’s interest is piqued by her neighbor, the

Shep, feeling manipulated and betrayed, seeks out an elder witch, , to break the spell. He leaves Gillian heartbroken, but months later, he encounters her again. She has lost her magic, her cat Pyewacket has left her, and she is capable of shedding human tears—proof that her love was real. Realizing their bond is now authentic and unforced, Shep reconciles with her, and they begin a new life together.