I just read over at CBR that there is a "Captain Marvel" movie in the works, and reports have appeared stating that Dwayne "The Rock" Johnson has been sniffing around for the lead. I'm not sure how a Shazam movie would fly, especially after my distinct indifference towards the latest Superman film. But I do like the Rock.
Captain Marvel is an odd character, and for me, has really only captured my attention as a foil for Superman, be it in "Kingdom Come" or in "Justice League Unlimited". I think that's mostly because I can't name a single arch-enemy for him, not one of any consequence at least.