The film follows 86-year-old Irving Zisman (Johnny Knoxville) and his 8-year-old grandson, Billy (Jackson Nicoll), on a cross-country journey to reunite Billy with his father. Along the way, Irving creates mayhem by pulling hidden-camera pranks on real people who are completely unaware they are part of a movie. Why It Worked
: The film’s strength lies in the genuine kindness or shock of bystanders. For example, a group of bikers known as "Guardian Angels" for abused children showed genuine tenderness toward Billy, providing a moving contrast to Irving's reckless behavior. Critical Success and "Oscar" Status Bad grandpa
: Unlike previous Jackass films that relied on the full crew, Bad Grandpa hinges entirely on the bond between Knoxville and Nicoll. Critics noted that Nicoll was "game for anything," often outshining Knoxville by delivering inappropriate lines with a straight face. For example, a group of bikers known as