It seems that the highly anticipated Iron Man 2 will feature a bit of a bonus for moviegoers who stick around until the credits are finished rolling. BadTaste.it is reporting that Iron Man 2 will feature a scene after the end credits that could possibly set up The Avengers.
There is a very juicy news about Iron Man 2 on BadTaste today. A 100% trusted source (NOT from the production/distribution, but very familiar with the movie) confirmed us today that there will be an easter egg in IM2. It's an extra scene, just like the one in the first movie, after the end credits. We are able to tell you what's about! It's a scene about... Captain America and Thor!
This news hasn't been confirmed by Marvel Studios, and likely won't be, but it would probably be in your best interests to stick around after the credits roll for Iron Man 2.