Be Kind Rewind
I'm always against movies starring Jack Black. He's funny in small doses (Orange County, Saving Silverman).
But "Be Kind Rewind" sounds kinda funny. It's a spoof movie apparently where Jack Black works at a video store and accidently erases a chunk of movies (VHS - old technology). To make sure his boss doesn't notice, he remakes them all.
A couple examples of movies they do are Superman (though the title will be changed, copyrights I guess), a Muhammad Ali documentary, and Ghostbusters.
I'll wait for a trailer to decide if it's worth getting excited about but this sounds promising.