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"I never drink ... wine."
Leni Riefenstahl's infamous film about the Nazi's Nuremberg Rally.
Triumph of the Will
The very first full-length animated motion picture.
Snow White and the Seven Dwarfs
Gangster movie, actually about Al Capone. The remake was about a Cuban douche, but they share a physiognomic characteristic.
Monster (Boris Karloff) desperately searching for a partner.
Bride of Frankenstein
Alfred Hitchcock introduces the MacGuffin, which means that the (eponymic) secret only motivates the characters' actions but is meaningless itself. So Robert Donat's flirtation with Madeleine Carroll matters more than this secret agency business.
The 39 Steps
John Wayne's breakthrough role in a John Ford western about a post chaise.
Jean Renoir's film about the principles of love and marriage is regarded as the fourth-best movie of all time by the Sight & Sound magazine.
The Rules of the Game
Charlie is just a little cog in a big wheel.
In the picturization of Erich Maria Remarque's novel, "a young soldier faces profound disillusionment in the soul-destroying horror of World War I." (imdb quote)