Protraph Lack of good storyline.

Pacionsbo Absolutely Fantastic

Griff Lees Very good movie overall, highly recommended. Most of the negative reviews don't have any merit and are all pollitically based. Give this movie a chance at least, and it might give you a different perspective.

Josephina Great story, amazing characters, superb action, enthralling cinematography. Yes, this is something I am glad I spent money on.

DCfan This movie alongside it's sequel is probably the best Marvel animated movie in animation. The story was bearable but it's no Ben 10 and Generator Rex Heroes United. The moments the two scientist were pretty funny to be honest. I don't care what people say but this version of ZZZax is better then the one from The Incredible Hulk (a regular human becoming ZZZax) and the one from EMH (A ZZZax that looks like bear).To be honest I don't think its a bad movie majority of these complaints are just coming adult children. It's a kids movie what did you expect. The main lesson behind this movie is team work like how Hulk and Iron Man did to defeat ZZZax it shows if you work together you can accomplice a lot. That's all I have to say.

ersinkdotcom Not wanting anyone to forget about their characters in between films, Marvel unleashes the CG-animated feature "Iron Man and Hulk: Heroes United." Apparently, these two super heroes don't need the rest of the Avengers to get the job done. The great green behemoth and heavy metal warrior can take on super-villains just fine as a dysfunctional duo.The Invincible Iron Man and the Incredible Hulk team up for the first time ever to battle an energy consuming monster named Zzzax. Neither of these super heroes can take on this tremendous threat alone. With the fate of the planet at stake, they must combine forces and set aside their differences to save the world.There's enough action and adventure found in "Iron Man and Hulk: Heroes United" to keep children happy. However, if you move past the slamming and banging and look at animation quality, you can forget it. This is more of the same shoddy CG work that anyone with any sort of viewing standards would shut off. It's a step above the crappy "Iron Man: Armored Adventures" CG, but that's not saying much.Kids will no doubt enjoy "Iron Man and Hulk: Heroes United" for what it is. Their parents will cringe as they are forced to sit through more second rate CG animation that borders on unbearable. Marvel accomplished what they set out to do in the end. They created something else for the younger fans to bug their parents to buy for them. For my Marvel fix, I'll stick with the "Ultimate Avengers" animated movies.

johnpc99 Did anyone notice the Transformers sound when zzzacks possessed the other Iron Men? I mean come on, what were you thinking? The movie was okay, animation was sub par for a Marvel movie. The voices for Hulk and Tony reminded me of Carl Fredricksen talking to Russell from Disney's Up. I feel like I was watching a video game. Which I would say this would make for a nice game. I'm gonna chalk this one up there with Hulk and 98 Godzilla as movies that never existed. I hope this is not a ongoing trend for Marvel. Did anyone see Hulk vs Wolverine? Another Marvel let down. Plus a movie that is an hour long does not encourage me to spend $15-$20 regardless of who is staring in it.

Darkwalker173 The animation in the movie was horrible. Although there might be some people out there who may like this type of animation, I am not one of them. The whole story was ridiculous and they completely failed in writing the Hulk. It makes me wonder if the people who wrote the story know anything about the Hulk in the first place. I had fewer problems with Iron Man, although it seems his armour is indestructible or something since it doesn't seem to even get scratched. Marvel needs to take a long serious look at its animation department and make some quick changes because they are way behind DC in overall animated film quality.