While it's not quite summer yet, the "summer movies blockbusters" season as started! Iron Man is sure to be a big hit and will be followed by not only sequels, but "spinoffs", in a way. It looks great (ILM being one of the special effects studio involved surely helped), has a great story, lots of action & humour, good acting and is fairly realistic. On that last point, I don't expect to see a real life Iron Man flying around anytime soon, but it could be possible with technology from the near future to create a suit with most of the features that Tony Stark engineered.
Of course, I expected action and I got that in this movie. There is also a good amount of humour, but it doesn't interfere with the story. No slapstick or one-liners with nothing to do with the scene. This movie will be used as a reference when judging other superheroes movies for sure.
Other movies are betting on Iron Man's success, as I saw many previews before the movie, some new, some newer versions.
If you usually don't stay until the very end of movies, I would suggest you do this time, as there is a scene after the end of the credits. I'm not going to spoil it here, so if you want to know what it's about, you will have to see it for yourself or get it from somewhere else on the net.
The movie star Robert Downey Jr. (Tony Stark / Iron Man), Jeff Bridges (Obadiah Stane / Iron Monger), Gwyneth Paltrow (Virginia "Pepper" Potts), Terrence Howard (Jim Rhodes), among others. It is directed by Jon Favreau, who gave himself a short role in the movie. Of course, there is a short cameo from Stan Lee...