If you're a fan of Johnny Knoxville, the 'Jackass' movies, and Borat, then 'Bad Grandpa' is a must see for you.

Johnny Knoxville dresses up like the title character and then films himself doing 'Jackass' type things to people who supposedly have no idea that it's not real.  It sound like part 'Borat', part 'Jackass'.  Here's a trailer to the movie, which opens Friday.

The sequence that starts at about 1:32 had me in tears laughing.