Mark Obenhaus

Steep traces the legacy of extreme skiing from its early pioneers to the daredevils of today.

Forty years after the assassination of John F. Kennedy, more than 80% of Americans still believe that Lee Harvey Oswald did not act alone. This ...

A documentary on the music of Miles Davis which contains concert footage from the 1986 New Orleans Jazz Festival and interviews with Miles Davis, ...

The creative processes of avant-garde composer Philip Glass and progressive director/designer Robert Wilson are examined in this film. It ...

Pulitzer Prize-winning investigative reporter Seymour Hersh presents his first television investigation for Frontline. Nazir Ahmed Vaid was ...

This FRONTLINE documentary was first broadcast on PBS on April 18, 1983. It was filmed at a clinic in Chester, Pa., a small city which at that ...