At several points, Hart takes center stage, plants his feet and unloads on a student headed down the wrong path, on a biker moll who has more facial hair than he can manage, etc. Sometimes, he finds a laugh or two. Often, these ranting monologues run out of gas before they start. His girlish shrieks at the first sign of danger are funnier, but not by much. And you start to wonder if Ice Cube’s feigned irritation with him involved any acting at all.
Hart has been funny in concert films and in supporting parts — a few killer scenes where he comes in, lands laughs, and splits — in everything from TV’s “Freaks and Geeks” to “Think Like a Man” and last summer’s “This is the End.” But as this film and his boring bit part in “Grudge Match” proved, a little of the little man is pretty much all we can stand unless he finds somebody who can write for him.