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

A series of cryptic phone messages and visions haunt a writer while he struggles to finish a novel. As they increase in intensity, he loses his ...

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 ...