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Found 13 films with crew matching "Len Janson"
P.J.'s Unfunnybunny Christmas
1993
Len Janson
Teleplay
P.J. Funnybunny
1989
Len Janson
Writer
Solarman
1986
Len Janson
Original Story
My Smurfy Valentine
1983
Len Janson
Writer
The Smurfs Springtime Special
1982
Len Janson
Teleplay
The Smurfs Christmas Special
1982
Len Janson
Teleplay
The Flintstones: Wind-Up Wilma
1981
Len Janson
Writer
The Hanna-Barbera Hall of Fame: Yabba Dabba Doo II
1979
Len Janson
Writer
Daffy Duck and Porky Pig Meet the Groovie Goolies
1972
Len Janson
Writer
Vicious Cycles
1967
Len Janson
Producer
Stop Look and Listen
1967
Len Janson
Writer
Vicious Cycles
1967
Len Janson
Writer
Boulder Wham!
1965
Len Janson
Story