Pennell's first film, a short
documentary titled
Rodeo Cowboys, chronicled a rodeo school near
Lake Travis outside of
Austin. He co-organized Austin's first
film festival in April 1975. He made his first narrative short,
A Hell of a Note, in 1977. The short inspired his most notable film, ''
The Whole Shootin' Match''. He enlisted the help of Austin writer Lin Sutherland to get it written and produced. It is a tale of two lifelong friends, and would-be entrepreneurs, chasing one
get-rich-quick scheme after another. Film critics
Vincent Canby,
Stanley Kauffmann and
Roger Ebert also gave the movie rave reviews. At the time of his death, Pennell had a grant from the
Independent Television Service to develop a script based on his treatment
My Dog Bit Elvis. == Personal life ==