I love FF, but won't bother seeing this version. I am getting tired of the antagonistic government angle that gets too played up (works for X-Men; FF not so much). From what I've heard and read about Trank's FF, the government locks down the team or something. The government doesn't need to be the antagonist, much less the villain. That's why you've got Dr. Doom. His inclusion as little more than an undeveloped afterthought, while the FBI locks up Reed and whatever else is just stupid.
Regarding Galactus, remember that's not what Galactus really
looks like; it's what our puny mortal minds are capable of conceiving him to be.
And at least he doesn't look as ridiculous as he looked back when human beings couldn't conceive of him with long sleeves and pants: