Sentinel Prime replaced Ultra Magnus in DOTM??

"Transformers live action movie blog has posted some call sheets that confirm that the character of Sentinel Prime was originally called Ultra Magnus." (Seibertron.com)

"The blog also states that they re-used the Ultra Magnus head as what the Apollo 11 astronauts step on and uncover as they explore the ship." (Seibertron.com)

I'll have to look out for that when I watch it this weekend!!

It would never had worked if that would have been the case. That would have been awesome if Bay changed the story line because there is NO WAY that Ultra Magnus would have turned on the Autobots! What would have been nice is that Ultra Magnus fits the Rosenbauer Panther Fire Truck better, considering that he was a freight-liner Truck in the 80's. Not the same, but close enough...here is the sheet that was found.