Despite Bruce Willis & Samuel Jackson presences in the movie, it James McAvoy that is electric on the screen. He makes you believe his strength just by his body language, and expressions. In order to appreciate this film, you have to his previous work to enjoy this concept.
The film is a potboiler indeed, but the way it has been handled will entertain you. There is much more to the story, but I rather you go an see it, especiaily for the "Thalaiyva Superstar Rajni"