I don't watch movies often, but my Top-20 would be something like this (not in order):
The City of Lost Children, The Blues Brothers, Little Shop of Horrors (1986), Shrek, Indiana Jones and the Last Crusade, Kirikou and the Sorceress, Man of La Mancha (1972), Army of Darkness, The Happiness of the Katakuris, The Tune, The Secret of NIMH, Princes et princesses, Spirited Away, Pan's Labyrinth, Sin City, Waking Life, Bound, The Truman Show, Cube, The Shawshank Redemption, 12 Angry Men (1957), Bom yeoreum gaeul gyeoul geurigo bom, La Moustache, Kung Fu Hustle,...

Wait, that's more than twenty. I'm terrible at making Top-20 lists.