I notice that when the poster was first released it stated the movie was rated PG-13, which surprised me, but the new trailer and poster list the movie as being rated R, which makes more sense. They would have had to edit the heck out of it to get it down to a PG-13.
Fido is a really funny movie that shows what might happen if you crossed Dawn of the Dead with Leave it to Beaver. :-) It's funny but in a different way than Shaun of the Dead... it's a lighter movie and in my opinion, funnier. This is one of those movie you might not think about seeing, but you should definitely check it out if you don't mind a little gore with your comedy.
To see the trailer visit the official movie site.
Thanks to /Film for pointing this out.
Fido opens June 15th, 2007.