Quite a few of these I would consider sad or terrifying (or at least creepy). But off the top of my head, I'm thinking maybe Big Fish and The Greatest Showman?
Nemo, Krusty and Robin Williams are the only ones that aren't instantly creepy (i.e. the ones with the least clown-style make-up). I can never remember a time when I didn't absolutely hate clowns and deeply regret their entire existence.
but maybe Quick Change with Bill Murray
Good call with Quick Change, I might have included that if I'd found it in time.