In addition to his fourth-wall breaking and violent sense of humor, Deadpool is known for his trademark red and black costume. When it came to adapting this costume -- and particularly the mask -- to film, the crew behind "Deadpool" took this job very seriously. In a new behind-the-scenes featurette from IGN, the cast and crew reveal the work that went into the development and creation of Deadpool's expressive mask.

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Starring Ryan Reynolds and Morena Baccarin, "Deadpool" will release on DVD and Blu-ray May 10. The film is now available to own on Digital HD on Amazon.