The 36-year-old actor played Brandon Sullivan in 2011's sexual exploration movie 'Shame' and appeared in a full-frontal nude scene which showed he has an impressive manhood.
Fassbender admits his naked appearance prompted many of his Hollywood peers, such as George Clooney, Sarah Silverman and Charlize Theron, to make quips about his appendage but he doesn't take their comments to heart.
In an interview with the new UK issue of ELLE magazine, he said: "I can't start saying, 'Wait a second there is more about the film than my d**k; it's one scene and it doesn't go on for very long."
Michael insists they are double standards in Hollywood as women would be protected from being ridiculed over their body parts, because it would be considered harassment.
He explained: "It wouldn't be acceptable it would be seen as sexual harassment, people saying [to an actress], 'Your vagina ...' You know?"
The Hollywood hunk wasn't too bothered about shooting the nude scene at the time and just got on with the job, even though he had normal insecurities about stripping off like any other guy.
He explained: "I'm insecure, of course I am. But that was just a matter of me going, OK and just getting naked."
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