So that explains where the title Dark Of The Moon came from.

You may remember that Michael Bay wanted to get away from giant robots after pouring his sweat and intern's blood and tears into Transformers: Revenge Of The Fallen. His preferred way of doing this was to step into a smaller project more in the vain of Pulp Fiction. Bay had planned to make to the dark comedy Pain & Gain, based on the true story of two imbecilic bodybuilders who get involved in an extortion scam.

Then Paramount got him liquored up and talked him out of it.
“I was one or two martinis in, talking about my ‘small’ film, when the president of Paramount said, ‘Yeah, that’s what we’re here to talk about. I’m going to get fucking fired if I don’t have a big franchise.’ It was right when the economy was in the dump. When you do these movies you instantly give 2,000 jobs. So I was like, ‘Okay—as long as I can figure out how to get creatively excited about this.’ “

Haha. I'd love to be a fly on the wall for that conversation.

BAY: I've got this great project that really shows the world what else Michael Bay is capable of.

PARAMOUNT: I'm listening.

BAY: It will really play to my comedic sensibilities.

PARAMOUNT: Err... oh man. SHOTS!!!