In the piece, Soderbergh explains casting Carano, commenting, "I felt there was potentially an opportunity to swim upstream a little bit against the grain of what's been done lately in action movies, especially in the ones that have hand-to-hand combat. If you have people involved who don't require doubles, who really [fight], then you can shoot in a style that doesn't necessitate cheating -- no wire work, no climbing up walls."
The piece, written by longtime MMA writer Loretta Hunt, can be read by clicking here.