During the fight that is barely seen between Optimus and Megatron I was watching closly to get as much as I could from under Blackouts arm and over Sam's head etc. At about 2:08:30-38 It looks like Prime and Meg's are using their respective weapons (mace and axe) against each other.
Now I was wondering if anyone else had noticed this as I havent heard about it before. or if I am just crazy

To comment just in case I'm not crazy I find it sad that I had to watch that closly to get that cool part of the fight. But I get why they did it with the whole human perspective and whatnot.