I have watched Stardust like 100s of times because it is just great.

The saddest happy movie ever is Life is Beautiful, but you have to read it (italian, I think). You will cry.

Amelie is weird & fun, but you have to read it too (it's french?)

Pride and Prejudice

Pricess Bride for sure.

Grandma's Boy is a pothead movie, but it's fun & used to be a regular watch too.