Cool that you did a re-watch Marilyn, I have it on hold at the library. Looking forward to it.
If I might suggest: the 1930's versions of The Prisoner of Zenda, The 39 Steps, and The Lady Vanishes. Since you say you like Disney, have you seen The Moon-Spinners? If you like costume pictures/swashbucklers, I can also heartily recommend another Disney: The Sword and the Rose. Lots of action (including sword-fights) and plenty of romance.
Grosse Pointe Blank and War Inc.