Go behind the scenes with Johnny Knoxville’s “Bad Grandpa” character Irving Zisman, and watch Johnny Knoxville go into prosthetic makeup to play the 86-year-old Zisman for the latest installment of the “Jackass” film series.

Irving’s Makeup and Makeup Artist Steve Prouty ¬†nominated for an Academy Award for “Best Makeup & Hair Styling 2014.”