The hero is first introduced upside down in a blurry shot, and then recruits Alicia Huberman to reacquaint herself with Alexander Sebastian.  
This movie would have had Vivien Leigh in the starring role if David O. Selznick had had his way.  Only at a party near the end is the mcguffin revealed to be something hidden in a wine cellar.  The hero is first introduced upside down in a blurry shot, and then recruits Alicia Huberman to reacquaint herself with Alexander Sebastian.  Its famous last scene is that of Devlin carrying Alicia down the steps to their freedom, while Claude Rains must reenter the house to his death.  FTP, name this 1946 Hitchcock film starring Cary Grant and Ingrid Bergman.
This movie would have had Vivien Leigh in the starring role if David O. Selznick had had his way.  
Notorious