Special Vudu offer for T-Mobile Tuesdays - Batman vs Superman $9.49 after code
Looks to be an additional discount. Looking at the same page without being signed in, and it shows $19.99 as the cost (minus $5.50 would be 14.49 rather than the $9.49 deal.)
Pics attached. Hope the heads up is helpful to someone.
PS: I know it wasn't the best movie, which is why I didn't see it in the theater. For $10 to own, doesn't need to be as good