Johnny Knoxville Up to His Old Tricks in ‘Bad Grandpa’

Watch 'Jackass Presents: Bad Grandpa' Exclusive Clip:

Now even the elderly are getting in on the "Jackass"-style shenanigans!

Well, that's not entirely true. The senior citizen who crashes through a storefront window in our exclusive clip is actually "Jackass" alum Johnny Knoxville under a three-hour makeup job, portraying the title role of the new comedy, "Bad Grandpa." After three "Jackass" movies, we might not be as impressed with Johnny Knoxville's death-defying stunts as we once were — however, seeing an 'old' Johnny Knoxville perform such madness brings an even more subversive edge to the "Jackass" silliness.

While "Bad Grandpa" is being credited as a "Jackass Presents" production, it's something of a departure from previous "Jackass" outings as it attempts a narrative structure rather than being simply a feature-length 'highlights reel' of crazy stunts and dares. Directed by Jeff Tremaine and written with his original "Jackass" co-creators Knoxville and Spike Jonze, "Bad Grandpa" chronicles the adventures of eternally cranky 86-year-old Irving Zisman (Knoxville) and his grandson Billy (Knoxville's "Fun Size" co-star Jackson Nicoll) as they embark on a road trip across the United States. Interspersed with scenes of strained grandfather/grandson bonding are, of course, a series of elaborate hidden-camera stunts and pranks.

Knoxville going through a window, even with the old man makeup, is pretty benign compared to some of the truly grotesque gags the "Jackass" team has pulled off over the years, though the spectators captured by the hidden cameras seem genuinely disturbed by the incident. After all, it isn't every day that someone's grandfather gets catapulted through a storefront by a malfunctioning kids' ride, especially one who kind of sounds like Johnny Knoxville putting on a gravelly 'old man' voice that many actors inexplicably use to supposedly sound older.

The original "Jackass" television series aired on MTV for three seasons from 2000 through 2002, which was followed by the highly successful theatrical features "Jackass: The Movie" (2002), which grossed $79 million worldwide on a $5 million budget; "Jackass: Number Two" (2006), which grossed $84 million worldwide on a $11.5 million budget; and the inevitable "Jackass 3-D" (2010), which scored an astonishing $170 million worldwide on a $20 million budget. Indeed, those numbers make you wonder why Hollywood doesn't just ditch the tentpoles in favor of only making horror flicks and "Jackass" movies.

"Jackass Presents: Bad Grandpa" crashes into theaters on October 25.

Watch 'Jackass Presents: Bad Grandpa' Teaser Trailer: