It's sweetly sentimental sometimes. But it is also snappy, scrappy, and sappy. Occasionally it's gender-bending; often it is touched by poignancy, not to mention tragedy. How do we love one another? Let us chart the many forms this fever takes. Films include: CITY LIGHTS, IT HAPPENED ONE NIGHT, BRINGING UP BABY, SINGIN' IN THE RAIN, WEST SIDE STORY, THE GRADUATE, TOOTSIE.