After years of sophomoric teenage sex comedies, along came LUCAS, a film that deals with real problems of adolescent love. The title character (Corey Haim) is a 13-year-old eccentric who likes bugs and classical music. Being a short, four-eyed intellectual to boot, he is the victim of all the high school bullies. Offended by the teenage social system that rewards people (especially football players and their cheerleader acolytes) for their physical prowess, Lucas spots the lovely 16-year-old Maggie (Kerri Green). They become friends, and Lucas falls in love with her. His ideal is threatened, however, by Maggie's attraction to Cappie Roew (Charlie Sheen), a handsome football player. Worse, she decides to become a cheerleader. LUCAS, the directorial debut of Seltzer, has more honest teenage scenes than all of John Hughes's films combined. Seltzer's characters are real; and Haim, Green, and Sheen play them wonderfully. As a result LUCAS is not just a film for teenagers but for anyone who has ever been a teenager. The film's greatest fault is its reliance on football heroics at the end; after such wonderfully developed relationships, it is a shame to see LUCAS take a cheap turn.