Like Owen Wilson himself, "Drillbit Taylor" has a loose, shaggy-dog appeal. Wilson plays a homeless ex-soldier who wants to emigrate illegally to Canada--and when three misfit high-school students hire him to protect them from bullies, he sets out to fleece them for the money he needs to get away. Naturally, this being a formulaic crowd-pleaser, he bonds with the kids and discovers that maybe his life isn't so worthless after all. Fortunately for moviegoers, the creators of "Drillbit Taylor" (including co-writer Seth Rogen, star of "Knocked Up") have the wit to tweak the formula and give what could have been prefabricated and bland some grit, surprises, and genuine laughs (as well as an allusion to this movie's obvious inspiration, the 1980 teen-movie classic "My Bodyguard"). While nowhere near as funny (or as rude) as Rogen's previous co-writing effort, the dorkily sublime "Superbad", "Drillbit Taylor" benefits from a similar grasp of the genuine cravings and frustrations of adolescence. Still, it's Wilson's movie, and his slacker-romantic rhythm gives the hmor its swing. Also featuring Leslie Mann ("The 40-Year-Old Virgin"), who is woefully underutilized as Wilson's love interest. One sneaky bit of casting: The main bully is played by Alex Frost, who played an unhappy teen driven to shoot up his school in director Gus Van Sant's "Elephant". "--Bret Fetzer"