Len Janson
Len Janson is a screenwriter, known for The Flintstones: Wind-Up Wilma (1981) and The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II (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 Flintstones: Wind-Up Wilma
Film, 1981
Find all films with Len Janson as screenwriter.