The makers of Police Academy and Major League team up to take on the submarine corps in Down Periscope, and the result is a testosterone comedy that's crude fun, with a pinch of corn-pone morality. It's good-natured, innocuous frivolity that should raise a few smiles and generate good but not great spring box office.

Grammer's first major feature after his TV success with Frasier finds him embracing a new persona. Out goes the intellectual cold fish, in comes the intuitive, warm, fun-loving leader of men. The role looks good on him, but it's a shame that he's also jettisoned the sophisticated dry wit which has been his hallmark in favour of a much broader, wetter humour. But what would you expect of a movie directed by Ward and co-written by Hugh (Police Academy) Wilson?

Down Periscope makes a surprisingly successful launch, with plenty of brisk one-liners and a promising set-up. But after that auspicious opening, it sinks.

This is amiable enough and perhaps one shouldn’t expect anything more from the team that brought you Police Academy (writer Hugh Wilson) and Major League (director Ward). What really lets this down, though, is the uninspired plot and one-dimensional characters. While it’s true that this was never going to be a high-brow evening at the pictures, the air of familiarity it leaves behind proves to be a major disappointment.

Though Down Periscope is set in the age of the nuclear submarine, the jokes seem to date back to the time of the original battle of the ironclads.