Sweetness is fine as far as it goes, but this oddball romance could have used a twist of lemon. Charlie Lang, played by Nicolas Cage, is a decent New York cop whose hairdresser wife, Muriel (Rosie Perez), gives him more hell than a den of dope dealers. Muriel wants bucks, big ones. She gets her wish when Charlie wins the lottery for $4 million. But the softy says he owes half to waitress Yvonne Biasi (Bridget Fonda); he promised her a chunk in exchange for a tip. Naturally, Charlie keeps his