Sexy Jessica Alba is missing a tooth after an over-zealous love scene with new movie co-star DANE COOK left her needing dental work. The Sin City star was shooting kissing scenes with Cook in new film GOOD LUCK, CHUCK when the couple's teeth clashed. She explains, "I lost a tooth. Isn't that disgusting? Dane and I were smashing our faces together." But Alba's publicist BRAD CAFARELLI is playing down the incident, stating, "She chipped a tooth and it was easily fixed."