Originally Posted by herolee10
I'm not so sure; I mean Feige mentioned on how they'll show Jane at the start of the film who's buried herself within her work due to being heartbroken from believing that Thor has moved on from her due to him not seeing her at all when he was last on Earth for "The Avengers", and even mentioned on how she'll be upset with that when Thor returns again so I really doubt that the film will start with Thor already there.
The film won't start with him there. The film will most likely start with the Marauders battle. But I still expect Thor to visit before he takes her back to Asgard, and thus near the start of the film.