“Jackass Presents: Bad Grandpa” is a lot like “Jackass: The Movie” but with more plot. Like the normal “Jackass” stuff, it has its moments with a few clever public pranks but many of them don’t work either because they’re gross or they’re just not funny.

In “Bad Grandpa”, we actually get a continuing plot throughout the sketches as old man Irving Zisman, who is played by the lead man from the tv show Johnny Knoxville, has to get his grandson Billy (Jackson Nicoll “Fun Size”) to his dad. Along the way the duo cause chaos and while some of it is genuinely amusing such as the penguin scene others such as the diner sequence feel really lousy.

Knoxville has been transformed into an old man thanks to some excellent make-up and his performance also works to give the feeling that he is elderly individual. The kid doesn’t work so well and I imagine the only reason he got the part is because his parents signed the consent form (something I imagine few would do). The people they play pranks on aren’t as funny as they should be for this type of film to work but then again I can’t blame the filmmakers for something they have no control over.

“Bad Grandpa” didn’t need the thin plot it has and it needed the dirty gags; it needed more physical comedy. Now that it seems “Jackass” wants to move away from unconnected skits, I can only think as to what the next instalment will be. I don’t care for the franchise but if you like the show or any of the other “Jackass” films then you’ll almost certainly like “Bad Grandpa” but if you don’t like the other stuff then I can’t imagine this one will change your mind. One thing I’m curious about is what Johnny Knoxville’s medical bill is after all these years.