Digby, the Biggest Dog in the World 1973

Synopsis:

Digby consumes a bowl of Project X, a liquid growth formula. Soon, he becomes a sheepdog of gigantic size!

Directed by: Joseph McGrath
Release date: 1973-12-01
Runtime: 88 minutes
Cast:
Jim Dale
Jim Dale
Jeff Eldon 
Spike Milligan
Spike Milligan
Dr. Harz 
Angela Douglas
Angela Douglas
Janine 
John Bluthal
John Bluthal
Jerry 
Milo O’Shea
Milo O’Shea
Dr. Jameson