For a real life complement to the film I would highly recommend this 1973 BBC documentary on life on Bishop Rock Lighthouse [0] and this modern day 2025 vlog of a lighthouse worker [1].

Sadly I did not see any mention of monkey pump in either of these, but I think they show nicely how lighthouse work self-selects for individuals who can handle (or even prefer) the solitude that comes with the job.

[0] https://www.youtube.com/watch?v=bc9qxyf_suI

[1] https://www.youtube.com/watch?v=PhRbJ3DQdlQ