-“Win a Date with Tad Hamilton!” is a guilty pleasure, equivalent to cheap Valentine’s Day chocolate. It’s great for a sweet fix, but it’s nothing exceptional.

Kate Bosworth stars as Rosalee, the typical sweetheart from a small town in West Virginia. Rosalee wins a date in a public relations-created contest with Tad Hamilton (Josh Duhamel), a wayward movie star looking to boost his image from naughty to nice. But in typical romantic-comedy fashion, her best buddy and manager at the local Piggly Wiggly, Pete (Topher Grace), realizes his “great” love for her. Will she choose the best friend who adores her or the illustrious celebrity who has fallen for her?

Bosworth, Grace and Duhamel make for an isosceles love triangle. Tad and Rosalee share more chemistry and romantic scenes together, kissing and groping in motels, while Pete and Rosalee don’t do much more than hug and kiss. Duhamel is a near-perfect and gorgeous celebrity, and Pete is just a grocery store manager. That hardly seems like a fair contest.

Grace is likeable in “That ‘70s Show,” but his role as a protective friend may surprise audiences. In one scene, he pleads with Tad not to break her heart after crinkling his puppy-dog eyes with a serious lack of sincerity. Yet in his better moments, Grace adds to the laughable humor in the film, as opposed to the halfhearted cliches that don’t get more than a slight smile.

Duhamel is believable enough as the Hollywood playboy searching for his soul and looking for Rosalee’s “goodness” to rub off on him, and it is believable also that a rich Hollywood star would move and buy a farm in West Virginia to be closer to her.

Bosworth’s role as the beautiful and down-to-earth goddess is an intelligent portrayal of the heroine Rosalee. She adds flair to the hollow role, becoming less of an object and someone we care for.

Director Robert Luketic also directed “Legally Blonde” and relies on the same formula of a perky blonde heroine looking for more in her life.

Nathan Lane and Sean Hayes are cast as Tad’s agent and manager. They add some realism to the movie with quips about taking Percocet and Vicodin for a headache, though their roles are limited to the movie’s need to please. Gary Cole’s role as Rosalee’s father adds some corny laughs because of his captivation with Hollywood Web sites.

A little bit more edge wouldn’t have hurt the movie. The darkest the movie gets involves Pete giving Rosalee advice before her date with Tad, when he tells her to “hold onto your carnal treasure.”

Cynicism needs to be left outside the theater to enjoy this movie. Sure, it’s unbelievable, but it’s got a lot of charm and, thankfully, no plot holes. Perhaps the PG-13 rating should include a warning: This movie is not recommended for anyone looking for anything more than a movie-length sugar rush.