Be honest. When was the last time you saw Morgan Freeman play the Big Bad?
You wouldn't expect a slim, 5'7", non-macho actor be the star of an action movie, but James McAvoy got to do just that.
Playing with Character Type: Freeman initially appears to be playing the same kindly, wise old man character he always plays. Turns out he's the villain.
Production Posse: As the movie was produced by Timur Bekmambetov, Konstantin Khabensky appearing in it in some capacity was pretty much a given. When the movie was released in Russia, a popular joke was that the entire movie was made just so that Khabensky would see Angelina Jolie naked.
What Could Have Been: The comic started life as a rejected pitch for an Elseworlds featuring the Secret Society of Super-Villains. Elements of this are still visible, such as basically the entire cast being Expies of various DC villains and heroes.