This is far from critical, but may be an indicator of something more important…
Today I was looking at the filmography for Lance Reddick (born June 7, 1962). I was surprised to find that it shows him with a role in a 1951 Hallmark Hall of Fame production as (the character) ‘George Thacker.’ Now, I’m neither the biggest math wizard nor fully cognizant of Hollywood’s child labor laws, but I suspect that -11 years old is just a little too young.
He also played a character named George Thacker in 1997’s “What the Deaf Man Heard”, so perhaps that confused the filmography code, but that would probably indicate something quite poor, since multiple actors can play the same character and character names may be re-used. Regardless, since it is impossible for someone to be in a movie before they’re born (I’m intentionally not counting their pregnant mother) it is very wrong for Plex to include media dated before the performer’s birth in their filmography (or any other -ographies that Plex may present.)
I suppose once “AI” infiltrates Plex’s metadata agent(s) we’ll starting seeing all of those details as well as the actor’s costumes, dialog, food preferences and shoe sizes! 
