It is the fourth installment in the Jackass series .
Jackass Presents : Bad Grandpa -- Jackass Presents : Bad Grandpa is a 2013 American hidden camera comedy film directed by Jeff Tremaine and written by Tremaine , Spike Jonze and Johnny Knoxville .
American is the fourth installment in the Jackass series .
Jackass Presents : Bad Grandpa -- Jackass Presents : Bad Grandpa is a 2013 American hidden camera comedy film directed by Jeff Tremaine and written by Tremaine , Spike Jonze and Johnny Knoxville .