In an interview at Comingsoon.net, Ben Whishaw indicates the Kavalier and Clay movie may be dead for the moment.
I think it’s not happening now. I think it’s been sort of put to one-side for a little while. It all fell apart, which is such a shame. I have not read the book even, but it’s a wonderful project. I hope at some point it’s revived.
via comingsoon.net (link)