Doug Loves Movies podcast
had chris evans on as a guest and chris said he hasn't even gotten the script yet
On Captain America: The Winter Solider.
Evans: I don't have a script yet. We start shooting in two months and they haven't given me a script. That's how Marvel works. Different directors, it's the Russo brothers. It makes perfect sense, Community, S.H.I.E.L.D. superhero action movie
and this site says shooting has been pushed from march to june