I agree, The cast does'nt bother me, its how the Lead guy/girl takes to the stage, and of course the story.
Pitch black was on the TV the other night, made for somthing like $23 million, Total B cast, with Vin Diesel putting in a Show stealing performance. I thought that was a solid movie, but take him out of it and I'm not so sure.
It just takes one person to break through and pull you in, hopefully somone will step up.