It's a very well-done movie and highly enjoyable with very good effects. Despite the near-constant action, it might be a bit long for some kids with attention span challenges, or who bore easily. The movie is really for kids who know and love the Avenger stories, since the Avenger characters are brought skillfully and memorably to life. These amazing larger-than-life superhero characters, their powers, personalities, the way you trust them to come through, and the way they work together to fight the bad guys - are the best part of the movie. Without the superhero superstars, it would be a fairly standard action-packed-battle-filled-good-guys-come-together-to-save-the-planet-from-futuristic-outer-space-evil-sociopath-and-win-against-impossible-odds gig. Things for parents to be aware of: 1. the action and fighting are intense and non-stop for significant portions of the movie. Most of it is straight out of video games and standard issue, but there are some upsetting scenes. Most notably, a good guy is brutally stabbed through the chest, and dies as you watch, his eyes open all the while. Some evil alien space monsters could also be scary for the younger set or kids who frighten easily. Also, some of the scenes are intense, with heart-pounding fight action; 2. while there is no actual sex or nudity, there are some suggestive moments and one scene with significant flirtation and innuendo; 3. All female characters are extremely sexy, and dressed in skin-tight clothing. Black Widow's sex appeal is obvious and is one of her most powerful tools, which I personally found inappropriate and unnecessary in a movie for kids. One of the early scenes shows her sitting tied up in a chair, very scantily clad, while three male captors tower over her, torture, and play with her. True, she kicks their butts and turns out to be as powerful a fighter as any of her colleagues. But I found that scene, the sexy appearance of every female character, and the way that female sex appeal was used a a commodity, to send some pretty unhealthy messages for young girls in the audience.