I'm not sure why this flick was on the Sci Fi Channel, other than it was a "creature feature." There was no science involved, and perhaps, not all that much fiction. Salties (Crocodylus porosus) grow quite large and eat a bunch of people every year. Oh, yeah, they did use "science" to explain why our demonic reptile was so far north. Global Warming strikes again!
The cast/script was replete with (relatively) believable human villains, heroes, and attractive, not over-clad, young women -- although Marsden is getting a little long in the tooth for this sort of thing, and Jack has all those greasy, unshorn locks. The writers forsook the opportunity to play the "Jaws" theme, including only a minor modicum of mild mutterings about the loss of tourist revenue (vice the loss of tourists, themselves).
There is an evil critter to go along with the evil villains, and in one of the primo scenes, the critter eats the villains. Great stuff! And the critters, both real and mechanical, are well done. No hand puppets in this cast of rapacious reptiles.
When our heroes finally get around to serious killer critter pursuit, they go after with a rubber boat, scuba gear, and bang sticks. Not my choice of gear, no siree. I'm more like PT boat, depth charges and RPGs. But what do I know -- Dundee used a knife.
Everything in this movie seems to work -- given the armament issue -- except the ending. Three of our heroes, two badly chewed, wind up in an underground chamber, out of air, with only an underwater egress. Change scenes, they're back in the boat, motoring off into the sunset. Hummm...
The worst thing I can say about this movie is that all the women looked seriously underfed. Maybe that's because the croc was eating everything in sight ;o) Well, there was a minor problem about accents. All the main Thai actors and actresses spoke excellently understandable English, mostly with an American accent. One younger girl, however, had an Aussie/New Zealand accent, although her sisters' accents were quite Americanized. Good Movie. Not "Godzilla" or "King Kong," but good.