The movie Fanboys rocks out loud, seriously. Here is a brief list of reasons why.
Geek culture! The geekier you are, the greater the possibility that you will get the jokes and references.
Epic confrontations between Star Wars fans and Trekkies.
Big time star cast, most of these are cameos - Kristin Bell (not a cameo), Seth Rogen plays not one but TWO parts!, Billy Dee Williams, Jay and Silent Bob, William Shatner, Carrie Fisher, Will Forte (SNL), Craig Robinson (The Office), Danny Trejo (Devil’s Rejects).
Favorite line - "I'm William Shatner. I can score anything."
Lots of music by the band Rush.
A bar named the Mantina, as in Cantina, but with men. Heyyyyy!
Also present is a touching story line of friendly togetherness. A group of childhood friends embarks on one last journey together because one of them is dying of cancer. This may sound like a comedy killer but that part isn't all too bad. Everything fits together nicely.
Very good movie.