Optimus Prime revenge of the fallen art. The coolest part of this whole movie. I was so excited and geeked out when he merged with Jet Fire and started flying and just whooped the mess out of the fallen :)
Optimus Prime is good friends with Doctor Claire Green (A counselor), Who'd become friends introduced by Sam. Optimus and Claire have formed an unbreakable bond of friendship and love. She's helped Prime deal with Bumble Bee's emotional issues.