Derek Freda

86-year-old Irving Zisman is on a journey across America with the most unlikely companion: his 8 year-old grandson, Billy.

A daredevil designs and operates his own theme park with his friends.

Johnny Knoxville, Bam Margera, Steve-O, Wee Man and the rest of their fearless and foolhardy friends take part in another round of outrageous pranks and stunts. In addition to standing in the path of a charging bull, launching themselves into the air and crashing through various objects, the guys perform in segments such as "Sweatsuit Cocktail," "Beehive Tetherball" and "Lamborghini Tooth Pull."

Bad Grandpa .5 gives you a whole new perspective on the world of Irving Zisman with bonus scenes and pranks also featuring Spike Jonze as "Gloria" and Catherine Keener as Irving's wife "Ellie", plus a look at the evolution of Johnny Knoxville's naughty alter-ego, the makeup effects, and a behind-the-scenes peek at the idiocy it takes to make a hidden camera movie in public.

Johnny Knoxville of 'Jackass' releases unused material of stunts, tricks, antics and shenanigans shot during the production of 'Jackass 3D' that didn't make it into the film, as well as the hilarious outtakes.

A making of documentary of the film Jackass 2.5

86-year-old Irving Zisman is on a journey across America with the most unlikely companion: his 8 year-old grandson, Billy.

A daredevil designs and operates his own theme park with his friends.

Johnny Knoxville, Bam Margera, Steve-O, Wee Man and the rest of their fearless and foolhardy friends take part in another round of outrageous pranks and stunts. In addition to standing in the path of a charging bull, launching themselves into the air and crashing through various objects, the guys perform in segments such as "Sweatsuit Cocktail," "Beehive Tetherball" and "Lamborghini Tooth Pull."

Bad Grandpa .5 gives you a whole new perspective on the world of Irving Zisman with bonus scenes and pranks also featuring Spike Jonze as "Gloria" and Catherine Keener as Irving's wife "Ellie", plus a look at the evolution of Johnny Knoxville's naughty alter-ego, the makeup effects, and a behind-the-scenes peek at the idiocy it takes to make a hidden camera movie in public.

Johnny Knoxville of 'Jackass' releases unused material of stunts, tricks, antics and shenanigans shot during the production of 'Jackass 3D' that didn't make it into the film, as well as the hilarious outtakes.