The Hollywood Reporter posts that Richard Dreyfuss is in final negotiations to play Dick in the upcoming film, which is the last major role that needed to be filled. Playing Cheney is not quite the same as getting to play President Alphonse Simms in Moon Over Parador, a task that pulled him out of the Public Theater in New York and threw him into a dictatorship, but I'll take it.
Dreyfuss is also a decent match to Cheney, although it's been a while since I've seen him without his signature facial hair. This is not, however, the first time he's taken on the world of Dubya on the big screen. In 2004 he played Chuck Raven in John Sayles' Silver City -- a political film that might have been about the Pilager family, but was very obviously based on the Bushes.
*Originally intended to be "wily coyote," but misspelled, so I'm using the main animated dude instead.