Portland Oregonian by Stephen Whitty

Sometimes it's a delicate comedy-drama with Oscar-worthy performances and touches of "A Streetcar Named Desire." And sometimes it's a foul-mouthed "Candid Camera" full of poop jokes and starring Johnny Knoxville in old-man makeup.

The Playlist by Drew Taylor

There’s a restless inventiveness to many of the gags that are matched only by the outrageousness of their surroundings.

RogerEbert.com by Odie Henderson

In the few moments where he's left to prank people on his own, Bad Grandpa doesn't treat him like the clichéd potty mouthed kid out for shock value. Instead, he uses his childlike innocence to make the adults more uncomfortable than his grandpa's raunchier shenanigans ever could.

USA Today by Scott Bowles

Rude, wrong and laugh-till-you-snort funny, Jackass Presents: Bad Grandpa not only stands as the best installment (by bounds) of Johnny Knoxville's hidden-camera franchise; it's one of the sharpest comedies of the year.

Boston Globe by Peter Keough

It’s the kind of outrageous comedy that you might even take your folks to, though probably not your kids. Say what you will about Harmony Korine and his demented geriatrics, at least they take their trash seriously.

New York Magazine (Vulture) by Bilge Ebiri

For all the fecal matter flying around, and all the dick jokes, Bad Grandpa turns out to be an act of redemption: It’s the anti-Borat. And for all its flaws, it might just be the most heartwarming movie of the year.

The New York Times by Neil Genzlinger

It’s hard to score big laughs with hidden-camera material these days because there has been so much of it since the “Jackass” TV show, but Mr. Knoxville and his young sidekick still land a few jaw-droppers.

Los Angeles Times by Betsy Sharkey

It's amazing what a little story and a little substance add to a movie. It might not be a giant leap for mankind, but it is a small step for one old man.

The Dissolve by Matt Singer

Though the plot is predictable, individual scenes (and individual targets) are anything but. In the film’s best moments, it’s more than funny; it’s exciting, and almost as daring as its indomitable lead actor.

Variety by Scott Foundas

Even at its low ebb, the movie effuses an infectious, mischief-making joy.