Mark Obenhaus

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

From the late 1920's through the '60's, Robert Moses built the bridges and highways, parks and parkways, tunnels and expressways of New York, as well...

From the late 1920's through the '60's, Robert Moses built the bridges and highways, parks and parkways, tunnels and expressways of New York, as well...

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...

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...

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

Documentary by lifelong friend that supports the innocence of Alger Hiss (convicted in January 1950 on two counts of espionage-related perjury)

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

A cinema verite study of the world of the blue-collar worker and the economic and psychological bind in which he is caught.

A narrative film in cinema-verite style about the filmmaker's involvement with a man who stands almost motionless in and around New York's Grand...

California has long been known as a land of dreams - a place where visionaries come to innovate, create, entertain, fulfil their dreams and change...

"Done To" (sometimes called "It Is, Done To") consists of simple camera frames which are silent and/or unconnected to a complex soundtrack running...

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 time...