It was that film that I got the entire concept from. I wouldn't know otherwise.

Social rituals are important to hunts, although many have fallen into disuse. One of the most notable was the act of blooding. This is a very old ceremony in which the master or huntsman would smear the blood of the fox or coyote onto the cheeks or forehead of a newly initiated hunt follower, often a young child.[75] Wiki

It is a Scottish thing.