The Panic in Needle Park (1971)

Al Pacino, Joe Santos, Paul Sorvino, Kitty Winn

This movie is a stark portrayal of life among a group of heroin addicts who hang out in "Needle Park" in New York City. Played against this setting is a low-key love story between Bobby, a young addict and small-time hustler, and Helen, a homeless girl who finds in her relationship with Bobby the st