SF comedy historically scores with mainstream audiences!

Admittedly there is no comprehensive list here, but when you look at a big list containing so many comedy movies that were SF disguised as comedy choices at the theatre/rental store then it does put ideas in your head!

http://www.tor.com/index.php?option=com_content&view=blog&id=58311

Check them out and maybe see the path for the future of SF to reach mainstream audiences. Maybe, just maybe, if you are writing/creating SF and you want your movie to hit the big time then making a comedy on the surface is where it needs to be.