After the obligatory contract-signing photo, it’s time for the equally obligatory script-reading photo. Here we see Rin Tin Tin Tin etc. examining the story, complete with a pencil so he can make notes. This picture was dragged out and reprinted whenever Rinty made another movie, or had his TV show renewed.

The original caption for this picture, however, is a bit more disturbing:
“Let’s see . . .S-C-H-I-Z . . ..S-C-H-I-Z-A . . . S-C-H-I-Z-O . . .ah, here it is! Schizoid! Dr. Rin Tin Freud peruses his psychology texts for information to aid him in his treatment of an emotionally disturbed patient.” A dog psychologist would not be a good idea. Example:

"Dr. Rin Tin Freud," the patient says, "I have these terrible dreams about sleeping with my mother."

"Is she in heat?"

"Pardon?"

"Heat. Does she smell like she wants it?"

"I don't know - I -"

"Well, go ahead, if it's the only way to keep the pack going. You'd be better off with your sister, though. Ah - our time is up. Now take me outside so I can whiz on a hydrant."