That's irrelevant. All of these studios and I mean ALL make use of the most talented actors in the business just cuz they're big names or well respected knowing full well the scripts will NEVER make use of their full acting abilities
Bale
Cheadle
Downey Jr.
Adams
Hardy
Eisenberg
McAvoy
Fassbender
JLaw
McKellen
Stewart
Eijiofor
Boseman
Cumberbatch
Swinton
Douglas
This is just something these studios feel they have to do. So telling them eh you don't need a big name actress to play Lois Lane will get you casting like Bosworth. They know Lois Lane is a big name in the comics so they looked for one of the most talented actors to play her. This is a situation where the casting director may not have even read the script or read it once and then tells the agents some lies to sell them on signing on to the project. After that they're stuck with it.
I know ppl are annoyed with JLaw but she is a very good actor and she stinks it up as Mystique. Fass and McAvoy do the best they can with what they have same for McKellen and Stewart. Eisenberg was wasted cuz the character really wasn't written to his strengths it was just bad casting. Cheadle is WASTED, go see Miles Ahead when it drops.I don't think it needs to be dwelt on when it comes to Hardy and Bale. It goes on and on. RDJR is probably one of the most impressive and even then that's not touching his best performances.
Of course I hear a lot of this but then how would the movie end? Who would they fight? Would be no reason for WW to show up for only really cool scenes.
Lex in his kryptonite armor?