By 1922, Alfred Hitchcock was working in the position in films

title-card designer

Explanation:

The first job Alfred Hitchcock had in the film industry is a title-card designer. He sent the design of the title screen to Islington Studios, and in 1919. they hired him. This job meant he was the one to design the opening screens with titles for the films. During this time he learned much about various other parts of film production, such as writing, directing, and management.

Only in 1922. did he land the job of an assistant director, and in 1927. he directed his first picture (The Lodger: A Story of the London Fog).

i think these large heads represent their gods and i do think they were worshiped by the people. if there was only one head and no heads around it i think it would be monotheistic but if there are several heads close to each other it could be polytheistic.