I adore old movies!
Some of my favourites between 1910-1945:
The Women (1939)
Meet Me in St. Louis (1944)
Rebecca (1940) - anything by Hitchcock is a winner.
Modern Times (1936)
It Happened One Night (1934)
A Night at the Opera (1935)
Regle du jeu, La (1939)
The Thin Man series
Brief Encounter (1945)
The Maltese Falcon (1941)
The Ox-Bow Incident (1943)
Laura (1944)
Arsenic and Old Lace (1944)
The Little Foxes (1941)
The Philadelphia Story (1940)