Interesting list, which shows clearly a pronounced taste for old movies. You probably noticed that in my lists movies are generally more recent, but I also appreciate the particular ambience of old movies, though I have more fun watching the modern remakes of "The Beauty and the Beast" (2014) or "King Kong" (2005) then the marvellous originals of 1946 and 1933.
That took me down to 20 possible. Eliminating half of those was really, really tough.
Well, this is the case for most of themes I already posted. To choose 10 movies among many possibles is always difficult, and the ten of today may not be the ten of tomorrow, depending of the mood when I establish the list.