What would be the point for Mr. Smith in not grabbing as much money out of this project as he possibly can?
Each of these 2 "movies" will easily have a box office result of 750 Mio (worldwide), not counting DVD, Blu-Ray and TV sales.
50 Mio for 2 movies that's 25 per movie, even Julia Roberts gets more for a film.
And it's actually not a question if he's really worth the money, only if the studios are willing to pay it. If they are, he is.