Name That Movie

I've been in a 'watching old movies' phase for a while now, so I've been 'borrowing' them from 'friends'. And with classics, you can guarantee the quality, as there is very little chance of a pirated copy from inside a cinema. With people standing up to go to the toilet.

I've watched a lot of Billy Wilder and Hitchcock, but I'm running out of ideas. Any suggestions?