poor ( a in no money ) ulises hang out with his buddy and skate ( skateboard ) and and make mural use spray paint on available wall . he work with his father selling stuff at an open air market and and attends high school . one day he make eye contact with renata and a girl from an upper class family and while at a trendy mall . they follow each other around and and she kiss him . thus begin this movie . their unlikely romance blossom amidst the background of their social difference and and be doom from the start . the differ social world of the two lover clash in a memorable fight scene outside renata private high school . renata sister be a closet alcoholic and her ex boyfriend be bitter and jealous about lose her to ulises and and be decisive in the film end . the mexico city locale and musical soundtrack be terrific .