In the movie, the "Four" who travel to the alternate dimension are Reed, Ben, Johnny and Victor, which in itself is pretty bad. Sue gets her powers by getting hit by an explosion back on Earth, when she successfully brings the others home. An ostensibly small but thematically huge change would have been to have Reed, Ben, Johnny and SUE be the ones who travel to the alternate dimension, with Victor being the one to ultimately shy away from the moment of shared camaraderie that makes the mission happen: hammer home that at the end of the day, he's not one of them. Then have it be VICTOR who manages to bring the Four back home, only to get caught in a lab explosion. Only the explosion doesn't give him powers, it scars his face. We see him escape from the facility with various military secrets and weapons blueprints, saying his scars are a reminder never to think of himself as equals with others ever again. Then, cue "One Year Later", we learn that in the intervening months Victor has built himself a suit of armor and, using the various stolen weapons blueprints, has crafted an advanced robot army which he has used to conquer his native country of Latveria and turn it into an isolationist state.