She's just one of my favorite people in these kinds of movies right now. Snyder would be pretty lucky to get her at this point.
Fey, however, would be better - just about perfect, IMAO. Among other things she's really attractive without being an absolute Hollywood sex bomb of some kind. One of the things I enjoyed about Byrne's early run on Superman was his emphasizing at one point that while Lois was pretty good looking it was her character and personality that Clark found so irresistably appealing. I also liked the dynamic - picked up and used to good effect by Levine in the first year of Lois and Clark
- that initially Kent is very much the "junior partner" in the professional relationship.