At the start of every actor’s career, one will be cast as a Day Player.

A role where one is on set for one day, with one (or maybe two) scenes.

Michael Caine in an interview said that he felt it was the hardest job in the industry.

One has next to no information about the character beyond
a very vague description and some broad context.

One is joining a team of people who have been working together for weeks
and one is expected to slot in, be a part of that team
with no previous relationship and to be totally professional
from the moment one arrives at the location or studio.
Wardrobe and makeup will expect you to know the routine;
the 2^nd AD will have no time for any questions or clarification.

You are on your own.

Which is where this course comes in.

I have, over the 50 years I have been an actor, done hundreds of films and TV performances as a Day Player.
From 30 minute TV shows to major feature films with A listers and renowned directors.

I was cast in The Last Duel (for example) and had a scene with Matt Damon and Adam Driver – directed by Ridley Scott.
For an inexperienced actor, not familiar with the protocol of on set hierarchy, this can be a very daunting scenario.