Haha, that made me laugh. Line two.... she must have the ability to fly. Wow, if Summer can do that, then I am impressed.
Seriously, I agree entirely and if, as Summer said "I don't like being upside down", is her worry. Perhaps you can compare it with my having to climb on the roof with a roof ladder to replace slates. I hate heights but you do in fact get used to it..... admittedly to a certain extent. I still wouldn't do what scaffolders do.
As mentioned above, and in T:SCC youtube videos. Here is a good example, see the comments; http://www.youtube.com/watch?v=UzUH0K3HSpE&feature=related
Allison from Palmdale - somebody else said this "she deserved an oscar for that". Yep, I agree.
I have a feeling that Joss Whedon already knows Summer is made of the stuff for a film that incorporates The Wasp with a special quality but perhaps he is up against directors, casting agents etc. Convincing them is another thing, when they are looking for what pops out of Playboy mags with the mouths of aggressiveness. It's difficult IMO.