Drop Dead Fred is definitely worth watching.
There's
Bogus, a film with Gerard Depardieu and Whoopi Goldberg...I wasn't wild about it. I also remember Lloyd (from the Disney show
Lloyd in Space) going through a sort of puberty thing for his species where he turned into his childhood imaginary friend (or the friend actually materiallised), who was a cowboy.
I know there's more that I'm just not remembering right now.