I Married a Witch (1942), directed by René Clair.
A very light, inconsequential screwball fantasy. It's actually kind of sexy in a 1942 sense: she sleeps over and wears his pajamas, we have skirts blown up and passionate kisses and last minute fiancée-swapping.
Fredric March and Veronica Lake are the hexed lovers. Susan Hayward, age 25, is the shrewish fiancée, and writer Robert Benchley provides dry wit. Edith Head costumes.
Criterion Blu-ray with heavy grain. Only 76m long.