Ernie Gehr, one of the pioneers of the structuralist film movement, was born today, July 20, in 1943.

Gehr began making films in 1968 with the two films Wait and Morning, and is still currently making films with his most recent being Waterfront Follies (2008) and Hurry Up Henrietta (2009).

In 1990, he was honored with the American Film Institute’s Maya Deren Award.

He’s probably most well-known for his 1970 structuralist classic, Serene Velocity. You can watch an excerpt below: