Imagine seeing an old man riding a mechanical rocket flying through the window of a grocery store. This is one of many real pranks people witnessed Johnny Knoxville do while dressed as an old man for the latest “Jackass” installment, “Jackass Presents: Bad Grandpa.”

In “Bad Grandpa,” Irving Zisman (Johnny Knoxville) must take his grandson Billy (Jackson Nicoll) across the US on a road trip, so he can live with his bum father, while his mother must serve some unfortunate jail time. Irving’s wife recently passed away, and this new situation, places some more stress onto him.

While on the road trip, Irving and Billy try to have some fun, as the two of them are going through a rough time. The remainder of the film centers around Irving and Billy getting into trouble within some local areas, by pulling off some pranks that are in the spirit of the previous “Jackass” films.

The immediate reason to see this film is for the funny pranks. There are some really funny moments in this film, and anyone who loves the “Jackass” films or the TV show – or even funny pranks in general – should have a blast with these hilarious moments. Johnny Knoxville really knows how to work a crowd in this film, making people’s real reactions to these pranks even funnier. Jackson Nicoll is also extremely funny as Irving’s grandson Billy, marking a very promising comedic debut for Nicoll as an actor.

Though very funny, this new “Jackass” film certainly has its problems. The first being that the film’s loose storyline does feel weak and unoriginal, as the whole “disconnected family” approach to this film feels over-used in today’s movies.

The film’s trailer also gave away some of the film’s funnier moments as well, making certain moments feel flat while viewing. Some viewers might leave this film “hungry,” as the film should have had either more pranks, or a more developed storyline, as the experience of this film feels a bit shorter than expected.

For those who liked the previous “Jackass” films, or enjoy watching some clever pranks, this film should be a moderate fun time. For those who aren’t into pranks or raunchiness, this film might not be the best choice for your next comedy.