Spoiler character and theme info from movie writers.

[SilverDragon]

ME GRIMLOCK NOT LIKE.

If they can justify giant alien robots turning into vehicles and crashing to earth, they can justify giant alien robots turning into dinosaurs.

I say they could be lying for all we know.

[MV75]

But really, dinobots? Meh. Meh I say. I'd rather see devastator.
________
Genetically Modified Food

[Pulse]

Screw Devastator!

I'd rather see...

[Geminii]

I dunno, I'd rather see Devastator. Only problem is that they would need to justify taking up seven character slots and thirteen CGI models to do it. Still, it would be damn cool to see a sextet of green protoforms entering the atmosphere in tight formation. Or even one big distant meteorite splitting into six parts halfway down.

Dinobots... they're kind of a one-trick pony. Admittedly, though, that one trick is being giant robot Michael Bays and blowing the living crap out of everything BECAUSE THEY CAN.

Heck, you could probably get away with just having Grimlock in there, walking the line between Autobot and Decepticon. It's a pity the Allspark went bang - it would be a plot excuse to have him grow to enormous size and go all mecha-Godzilla before being shrunk back down.

As to how to get them in there, freakin' *easy*. Have a line from one of the Autobots to Sam saying that if the thing they scan is just a framework, their disguise systems make a 'best guess' at what the covering should look like. Then have Grimlock or the Dinobots land, get attacked by Decepticons just as they're looking to scan local modes (including maybe a silver Mustang, hee), and have their scanning beams get jolted to a dinosaur skeleton exhibit at a nearby museum, or even a "dinosaur skeletons made out of junk" artwork.

Come on, that took me, what, one second to think up and seventeen seconds to type. And ALL HOLLYWOOD can't figure out how to do this? Where do I pick up my check?

[kurdt_the_goat]

If there's no Dinobots, then there must be no Wheeljack
Surely if he was there he'd be able to whip up some Dinobots in no time.. modern-day writers be damned!