86-year-old Irving Zisman is on a journey across America with the most unlikely companion: his 8 year-old grandson, Billy.
Guilty sniggers follow.
Most of the gags fall flatter than a Knoxville belly-flop.
There's some very funny stuff here. But there's a lot of rubbish too.
Bad Grandpa disappoints more than it impresses.
Some of the pranks are awfully funny, putting lewdness and prosthetic body parts in places they're really not supposed to go.
Secondhand gags, third-rate execution, fourth-rate results.
General release. Check local listings for show times.