These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Abominable Dr. Phibes
The original movie contains YMMV examples of:
Older Than They Think: The last challenge, based on the Plague of the Death of the First-Born Son, requires the surgeon who failed to save Phibes' wife to cut out a key planted from behind his own son's heart that will allow him to deactivate a machine that will spray acid into his son's face if he takes too long getting the aforementioned key. This might as well be a prototype for the Saw films.
Also, this is a film about a man with burned skin, supposedly dead, who takes revenge on those responsible, sometimes through their children. Hmmm.
And although the idea of the Poetic Serial Killer goes back way before this movie, it's fair to say that Se7en may have gotten some inspiration from Phibes' extreme creativity and use of religious motifs.
Squick: "And then he'll have a face... 'LIKE MINE!'"