Transformers 2

This movie is bad in so many ways that it basically defies description. The best attempt, I think, comes from topless robot, in the form of an awesome FAQ:

What good is he dead?!
Ah! Remember the shard? Sam uses it to bring Jetfire back to life!

Not Optimus?
No! This way, Sam can get the symbols translated... so he can, er... find the ancient machine... that can, uh... possibly bring Optimus back to life.
...
Why would a robot need to fart, pee, or vomit? And why would it need testicles?
Michael Bay does not understand what a robot is.

I would give spoiler warnings, but let's face it: this movie can't be spoiled.