Four years ago, ``Y Tu Mama Tambien" made Alfonso Cuarón's reputation as a director with an elastic sense of humor, a social conscience, and a healthy respect for siz able sexual appetites. But if you were going to the movies in Mexico in 1991 when ``Sólo Con Tu Pareja," his first attention-getting feature came out, you already knew that.
The movie, which Cuarón's brother Carlos wrote, is an energetic and slangy screwball comedy with almost unprecedented emphasis on the country's yuppie middle class. The film focused on a gleeful womanizer in Mexico City named Tomás Tomás (Daniel Giménez Cacho). The film's charm stems from the impression that Tomás is not a sex fiend, per se. He's also on his way to the doghouse at work: Coming up with a catchy ad campaign for a brand of chilies is harder than you'd think, and so is having an affair with your boss -- she's waiting for your copy and your sex.