After Optimus died, the autobots turned up as a group to save Sam, but Ironhide and co allowed Sam to disappear with Bee and the twins... why? I'd thought they all would stick together and keep Sam safe? Instead of leaving Bee & the twins to protect him. Sorry if this is a random question, but im watching ROTF on channel 4+ (in UK), and that scene just happened. They were all together but then randomly separated.