Originally Posted by DA_Champion
I saw The Avengers twice and I have no recollection of Selvig's involvement in that movie. I don't think it's a good idea to put aside the story of Thor 2 for several minutes to bring up a plot point involving a tertiary character from The Avengers. Ideally Thor 2 should be focused on the story of Thor 2.
For this scene to work, you're expecting people to remember the fine details of a movie that came out over two years ago, and even then it's not a good idea as it builds up The Avengers movie and not Thor 2. Contrast this to TDKR when they talk about the effects of The Dent Act. It does build up TDK, but it is explicitly relevant to the plot of TDKR.
Are you for real? He was a huge part in getting done what Loki needed to get the portal open. Seriously? There is no fine details needing to be remembered. Selvig was working with SHIELD and Loki took his and Clint Barton's minds at the same time. That was pretty damn important to the story in TA.