Samuel L Jackson talks
about his Marvel movies and Avengers involvement.
...After I finish that film in Canada I have to go to New Mexico to start The Avengers. Work on The Avengers from April to the middle of June. Go to Columbia and work on a film in Columbia. Come back, Finish The Avengers..."
So he has 3 solid months of work on Avengers
then goes off and comes back to finish the shoot for an unspecified time frame. I wonder how they are aligning the actors shooting time. Hemsworth would need time in mid April I'd think to do press rounds for Thor
. Likewise for Evans in July for Captain America
At any rate the film will be in front of cameras by Spring and based on his report of 3+months Jackson is going to have a beefy role in the film.