Idiotic, infantile and worst of all not very funny, Jared Hess’ “Gentlemen Broncos” is hampered by predictable plotting and equally predictable weirdness.

Hess, who scored with the appealing “Napoleon Dynamite” and then stumbled slightly with Jack Black’s wrestling priest in “Nacho Libre,” has fashioned another Utah tale about another shy teenager, Benjamin (Michael Angarano).