Homer Philip Groening was a German Canadian director and father of Matt Groening. While being a filmmaker, was also an advertiser, writer, and cartoonist. He was the inspiration for the name of Homer Simpson.
The Story 1969
Director, Camera Operator
Basic Brown, Basic Blue 1969
as Narrator, Director
Psychadelic Wet 1967
Director
Get Wet 1967
as Narrator (voice), Director, Cinematography, Writer
A Study in Wet 1964
Credits from TMDB.