Amazon.comDirector Karyn Kusama's independent film about a female boxer finding her footing in the male boxing world was a significant hit at the Sundance and Cannes film festivals. Its soundtrack traces an urban groove through many permutations, focusing on Latin hip-hop. There's the positive message of newcomer Cole, a South Bronx singer who's teamed up with guest rapper Queen Latifah and producer Dallas Austin for "I Can Do Too." There's the tough-street side of "Project Party," by MC Cuban Link, featuring Sunkiss; the pulsing bravado of "Unstoppable," by Remy Martin; and the carefully layered vocal attack of Fat Joe. Settling things down a bit is a brand new track from Grammy Winner Carlos Santana, whose "Olympic Festival" serves as the celebratory calm in the eye of the storm, and Theodore Shapiro's ambient "Tropicana," a sampler of the movie's instrumental score. --Rob O'Connor