I thought that too. He seemed oddly impatient at Sam's House and pretty weak at his inability to save Bumblebee from being captured and from saving Sam and Megan Fox from falling off his shoulder. Other than totally Pwning Bonecrusher - he didn't do much - heck - he didn't even defeat Megatron - Megatron pretty much beat Prime into submission to the point where prime was ready to give up and sacrifice himself. Definely not the fatherly leader Optimus Prime that we all knew and loved from the 1980's.

Question - Does beheading a transformer kill them? It worked on Bonecrusher but it didn't work on Frenzy.