The film's grueling training sequences have a perverse fascination, and, though he's nothing special here, Kutcher is probably the most appealing he has been in a big-screen role.

The overlong but involving drama has obvious cross-generational appeal.

Sometimes you want to buy an extra-large popcorn and settle in for a big budget Hollywood blockbuster replete with entertaining explosions, undemanding dialogue and completely unrealistic action sequences. If all that sounds like gloriously uncomplicated fun, The Guardian is your movie.

An action movie, a basic training movie, a swaggering sea adventure, a home front melodrama and an inspiring tough-love heroic teacher fable. If the aggregate of all these movies is exhausting and occasionally overwrought, some of the parts are stirring and effective, though not exactly fresh.

The movie represents an earnest effort to compensate for all the love the media has shown to firefighters and other land-based first responders in recent years with little thought to the Coast Guard; the drama also crashes on wave upon wave of clichés.