Worst. Movie. Ever.
Okay, that blog title was just to fool you into reading this. The title of Worst. Movie. Ever. officially goes to Will Smith's Wild Wild West. 
But Jack Black's Year One came close.
All the funny parts are in the trailer, so don't even bother going to see it. Maybe get drunk and rent it. It might be funnier then. I love all these guys, but this one was a waste of time.
And I think that Michael Cera's effeminate under-breath muttering technique has officially jumped the shark. I've been over Cera-saturated.
So I probably won't see this.
Side note, Filmdrunk.com just posted the Worst. Movie. Ending. Ever! Haa! I don't even get what's going on. The End.
Master Of Disguise
Master of Disguise with Dana Carvey is by far the worst movie of all time, my brother and I were actually laughing about how bad it was earlier today, and sure enough this blog came up
I agree
Year One was pretty bad. And I actually thought the funny parts in the trailer were much less funny in the context of the actual movie. So there wasn't much funny about it at all.
You've obviously never seen
You've obviously never seen either The Forbidden Zone, or Transformers 2. Actually, although I really didn't enjoy Transformers 2, it's definitely way better than the forbidden zone. Or, Shrunken Heads. There's way more bad movies than good ones out there.