The Transformers movie was basically the plot of the Transformers Marvel Comic, same family of humans and all.
I don't mind them changing Megs because transforming into a gun is stupid on so many levels. In the cartoon he would physically shrink down to a hand-gun where every other Transformer in existence basically kept their full bulk when transformed (with the exception of Shockwave of course).
Besides Megs has been a lot of things, as Galvatron he transformed into a giant energy cannon. And the next-generation Megatron from Beast Wars became a Tyrannosaurus Rex and later a dragon.
I agree that Bumble Bee should have been one of those new VW Bugs however.
But what it really comes down to is: Was Optimus Prime a blue and red semi and did he have his original voice? Both answers were "yes" therefor the movie rocked!
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