Len Janson
Len Janson is a screenwriter, known for The Flintstone Primetime Specials (1981) and The Hanna-Barbera Hall of Fame: Yabba Dabba Doo 2 (1979) and Daffy Duck and Porky Pig Meet the Groovie Goolies (1972).
Len Janson
- Name: Len Janson
Len Janson's filmography
Screenwriter
Len is listed as screenwriter for three titles.
The Flintstone Primetime Specials
Movie, 1981
Find all movies with Len Janson as screenwriter.