The plots of hip-hop movies are as rigid as Japanese Noh plays and this pretty average British example makes the usual progress from hero humiliated by rival, the gathering of a new crew around Europe, the rapid training for a big public confrontation, the last minute setback, and the final triumph featuring a major dancing innovation, a fusion of Latin and street. The hero, a white American hanging around the predominantly black London street-dance world, is a morose fellow; the 3D is moderately imaginative; Tom Conti plays the usual token adult, in this case a wise old Parisian cafe owner.