I got the DVD with extras. It kicked ass. There's a few segments on the new planes used in the film (not just the F-22, but the non-Transformer stuff as well), and there's this amusing part about Bonecrusher's Buffalo form.
Basically, the creative team thought they were getting something with a badass scoop/claw. Something like this:
Instead, they got this:
Which was not as big as they imagined. So they modified that entire section. Pretty funny.
"You're either lying or stupid." "I'm stupid! I'm stupid!" Megatron and Starscream