According to iHero

My son and I went to see the Transformer movie. It was excellent ! The only drawback was the transformations happened a little too fast -- and Optimus Prime only used his sword once to kill a Decepticon.

A theme of the movie was "no sacrifice, no victory" -- a great, classic theme. I can't find an earlier source to this phrase than the movie-- and it sounds much better than "no pain, no gain"