TWO THINGS that I will NEVER buy!! SPOILERS
1) How is Silver Surfer able to (seemingly) destroy Galactus in the first place? He was only bestowed a small portion of the Power Cosmic from Galactus himself so would'nt that make it more prominent in him!? Even so why would you risk putting the power in the surfboard when something or someone (just like in the film) can potentially steal the board and use it for their own gain?
2) How did Surfer know that would even work? Was he risking it or was he 100% sure it would again (seemingly) destroy Galactus? If so why didn't he try it before? So many other planets died in the process so why Earth in particular? Did just seeing Sue reminding him of his old love really convince him alone to save the entire planet? Superficial much!?