Think a loudmouth for 2 hours is unfair. She was a skilled flirter when she needed to be at the beginning, she got loud and ballsy when she needed to be, when she saw everything falling apart and when threatened by Russian henchmen types, but it also brought out her defence mechanisms which you must need in that profession. For me though all that was necessary to give us that final moment at the end of the movie, where all of that was stripped away and we saw what was really going on. I thought she was phenomenal and far deserving over Demi - agree Substance was just pretty weak with a frankly nonsensical premise to begin with.