The new "Jackass Presents: Bad Grandpa" movie stars Johnny Knoxville pulling pranks on real people in his old-man Irving Zisman character. It has some people saying the "Jackass" star is channeling Sacha Baron Cohen in a movie that's half-scripted and half real reactions. But, of course, Knoxville used to play the 86-year-old Irving Zisman character on the "Jackass" TV series, where he would prank real, unsuspecting people.

"Jackass Presents: Bad Grandpa" features Knoxville in old-man makeup traveling cross-country with his grandson Billy. A Gawker commenter noted the plot similarity between "Bad Grandpa" and "Little Miss Sunshine," but the new "Jackass" movie takes the toddlers in tiara trend to a twisted, though not entirely illogical, conclusion.

The "Jackass Presents: Bad Grandpa" movie trailer features many more inappropriately funny moments.

Watch "Jackass Presents: Bad Grandpa" movie trailer below:

The "Jackass Present: Bad Grandpa movie trailer opens with a scene of Billy pushing Knoxville down a deserted road in a shopping trolley. Next the pair are in a grocery store with Knoxville shoving a loaf of bread down his pants.

"That's how it looks most of the time anyway," Knoxville says.

The first shocker comes when Knoxville tries to fix a quarter ride for Billy. After tapping the rocket ride a few times, it shoots Knoxville into the store window as horrified bystanders look on.

Knoxville then proceeds to ruin a wedding and a funeral and enrages a woman who believes the "Jackass" star is abusing Billy. But Knoxville isn't the only one that gets to have fun in "Bad Grandpa." Billy also pulls some pranks of his own, asking a woman what her stripper name is and wreaking havoc when he enters in a child beauty pageant dressed as a girl.

"Jackass Present: Bad Grandpa" is directed by Jeff Tremaine, and written by Tremaine, Knoxville and Spike Jonze, the three creators of MTV's "Jackass."

The previous "Jackass" movie, "Jackass 3D," received generally favorable reviews for its use of slow-motion high-definition 3D cameras, its feel-good stunts and the surprisingly touching way the movie dealt with its aging daredevils.

"Jackass is comedy without an inch of malice, cruelty or cynicism. Its stars may be driven to hurt one another, but they do so with giant, authentic grins, and always end with a cuddle", Simon Miraudo of Quickflix wrote. Meanwhile Andreas Heinemann of Flicks.co.nz wrote: "The real star is the slow-motion high-definition camera that gives even the most basic punch to the face a cinematic sensibility."

"Jackass Presents: Bad Grandpa" will be released in theaters on Oct. 25.

What do you think of the "Jackass Present: Bad Grandpa" movie trailer? Let us know in the comments.

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