Let's take a JOURNEY THROUGH TIME!!!
Spellbound (1945), directed by Alfred Hitchcock, starring Gregory Peck and Ingrid Bergman. The crucial moment comes from about 3:00 till 3:47.
White Christmas (1954) directed by Michael Curtiz, starring Bing Crosby, Rosemary Clooney, Vera Ellen and Danny Kaye. Crucial moment near the beginning.
Charade (1963) directed by Stanley Donen and starring Audrey Hepburn and Cary Grant. Crucial moment within the first minute.
Liverwurst, liverwurst, liverwurst. Sandwiches. Sandwiches. Sandwiches. Shrug.