When I first read the comic, it spoiled it when Optimus said to Megatron "Hello Brother." And Megatron said to Optimus "Hello Brother." In the movie when Megatron died Optimus said "you left me no chose brother." In Revenge of the Fallen, when the Fallen was fighting Optimus he said "Die like your Brothers." And Optimus said "They were your brothers too." Brother, What does that even mean to them?