I too liked The Postman. People don't like it because it is a bit soppy, but that is fine with me - they can stick to Death Wish and other revenge jerkoffs.
I also like One From The Heart. Same reason.
However, I always hate it when people criticise other people's choices instead of just giving their own, So I will try to think of one or two.
Sophia Loren, El Cid.
Marlon Brando, Teahouse of the August Moon (not really a career breaker, but it should have been).