The Last Starfighter
Howard the Duck
Lots of good ones posted.
Jesus Christ Superstar.
Brotherhood of the Wolf
Woah woah woah... everyone else hates "The Goonies"? No way. That movie rocks!
Not sure I've met anyone that doesn't like the Goonies! (At least not in the 25-40 age bracket)
Wild, Wild West
The Adventures of Pluto Nash
Wow. I'm surprised how many people have Indy IV down as a movie they liked. I just watched it the other day with my kids and realized that I like it too.
I also think that Revenge of the Sith is pretty good.
Another closet Indy IV lover.
Return of the Jedi.
Judge Dredd i love it
People are picking some soft answers - Jedi, Tron... C'mon - not EVERYONE hates those films and you're confessing a guilty pleasure.
Lets get down to brass tax -
Wild Wild West is one i'll go with.
Kate and Leopold
I come in peace
Goonies doesn't count. I've never met anyone who didn't like that film.
Robin Hood: Prince of Thieves, yes Kevin Costner's performance sucks, and I laugh every time he says "This is English courage" in his American accent. However, Morgan Freeman and Alan Rickman make this movie a lot of fun, something a Robin Hood movie should be. Also Friar Tuck is awesome.
I second The Postman
Superman Returns I loved it. Yes, even the suit. Even Superman having a son. Kevin Spacey as Lex Luthor: awesome.
Sky Captain and The World of Tomorrow It's a damn shame this franchise didn't take off. I would have loved a few of these every couple of years. This movie was/is a lot of fun to watch.
I'll second Prince of Thieves. Great flick although I do know a lot of people that like it.
Most of mine have already been mentioned, but I'll list 'em again anyway:
Star Trek V - The Final Frontier
The Hitchhiker's Guide to the Galaxy
Indiana Jones and the Kingdom of the Crystal Skull
And, yes, Star Wars - the Prequel Trilogy. Admittedly not as good as the Original Trilogy, but I've accepted them for what they are and I enjoy watching them.
The Thin Red Line