Tougher than Shaft and smoother than Superfly, this high-voltage sequel to Black Caesar explodes with enough action to incinerate New York City. Packed with machine-gun mayhem and riveting adventure, Hell Up in Harlem is nothing less than a modern-day tribute to the classic 30s gangster film. Fred Williamson is Tommy Gibbs, a fearless, bulletproof tough guy who blasts his way from the gutter to become the ultimate soul brother … meer