Well, I know, another thread on this. However, seeing a film a second time can show you some flaws/jokes in the film.
One thing I found pretty funny, which I think they did intentionally as a joke, is at the end, when stark is reading the newspaper, when he reads that they are calling him "Iron Man," the picture on the page is actually from the video that was leaked awhile back, showing them filming. In that video, I remeber it showing the actor in the suit on the otherside of a fence at night, and I saw that the picture on the movie's newspaper, they had put a screen cap from that leaked video!
Another thing I think they overlooked, was after the main bad guy had taken stark's chest arc reactor, and he crawled to the workshop to get the original one. Well, after he shatters the case, and they show him again on the ground, when Rhodes finds him, for a split second, you can clearly see that the original chest piece is still on the stand, on the floor, but somehow has it on him!
LOL, I just realized how much free time I have...I'll go build something now..