Yeah I saw the Fantastic Four movie and it sucked big times. They really messed up with Doctor Doom & The Invisible Woman. Doom didn't seem as menacing in the movie as he did in the comics or even the cartoons (Spider-Man or Fantastic Four either one). He pretty much got the same goofy treatment as the Green Goblin in the first Spider-Man movie, there's no real dangerous threat to the world or even New York they don't have any real plan short killing the hero. Look at Magneto or Doctor Octopus from X-Men & Spider-Man2, they had a plan that would have destroyed the entire world and killed millions if no one had stopped them.
As for the Invisible Woman, don't get me wrong I love Jessica Alba (#1 Dark Angel Fan) but she should have never been cast in this part not because of race but because of the roles she usually plays. With a few exception, she usually plays the tough-as-nails badass and even though Sue Storm has pretty through some crazy shit over the years she's always been pretty much the all-american good girl-turned-superhero. Hell, I love Dave Chappelle, but I wouldn't cast him as Superman. They tried to sell that movie based entirely on how sexy she is and we all know what happend last time Hollywood tried that . . . Catwoman.