In the genre of comedy, there are only two gimmicks that are fool-proof laugh producers: poop and injuries.

“Jackass: The Movie” (Paramount, R) has plenty of both.

Starring Johnny Knoxville and his band of rowdy friends from MTV’s popular show of the same name, “Jackass” brings its sick and twisted stunts to the big screen for the first time, where they are safe from those pesky blurry dots meant to shield viewers from what they now can pay money to see.

“Jackass” opens with a blatant showing of what a big-time movie studio budget can buy. Eager actors Knoxville, Bam Margera, Steve-O, Chris Pontius and Preston Lacy enter the first scene clutching for dear life onto the sides of a giant shopping cart as explosions go off around them.

Having the opportunity to really spread their wings over an R rating, the masochistic “asses” pull off pranks and stunts that would never fly on prime-time television. One prank that stands out (cough cough) is one in which Pontius (aka “Party Boy”) ties a string to a bottle rocket and the other end to his manhood.

Readers with imagination can figure out what happens.

Director Jeff Tremaine had his work cut out for him with this production, and manages to hold steady shots of moving targets. Shooting scenes from the back of a golf cart while zooming over bumps at top speed can’t be easy, but the end result is masterful.

More funny than it is offensive, the cast of this film has the natural ability to make defecating in showroom toilets look like selling girl scout cookies. The innocence and ease in which it was done should not warrant outcries from picketers and political activists, but probably will.

While “Jackass” is not a movie that is good for a night out with Mom and Dad, it is perfect viewing after an evening of booze and pizza. Just don’t eat too much pizza before sitting down in the theater, or you may end up leaving it behind you on the floor.