A Nazi death's head "congratulates" Canadians for all the helpful military intelligence he overheard from loose talk and gossip.
Keep Your Mouth Shut (1944) Online
With the lurid imagery of a talking skull, we learn the consequences of blabbing military secrets without regard that Nazi spies could overhear and use this information to their deadly advantage.
| Uncredited cast: | |||
 | Lorne Greene | - | Himself (voice) (uncredited) (unconfirmed) |