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: Jack Kirby
Older Than They Think: Stan Lee wasn't the one who originated the creator cameo appearances in live action Marvel adaptations. Kirby beat him to it. He appeared in a 1977 episode of The Incredible Hulk TV series. He was a police sketch artist drawing a witnesses description of the Hulk. Naturally, Kirby's drawing looked more like his version than Lou Ferrigno. Stan Lee didn't get his chance until 1989's Trial of the Incredible Hulk.