Anyone who thinks it’s easy to play a comic book superhero should give a listen to Lucas Till, who endured nerves, weird miming exercises and endless costume fittings to portray plasma-flinging mutant Havok in X-Men: First Class.

“I was so nervous doing my scene with James McAvoy,” Till said, “I did it once and Matthew said, ‘Take it down about 95 percent.’ So I had to act angry without yelling, and it came across really stupid. I stormed out of the room and looked more like a bratty little kid than a superhero.”

Till also discusses deleted scenes and offers his take on X-Men’s enduring appeal: “A lot of times, superheroes … are cast out because they’re different…. Everyone can relate to that. At some point in your life, you’ve had ill will harbored against you. I think that’s why everyone really responds to X-Men.”