The first accurate portrayal of a black hole in Hollywood was in the 2014 movie “Interstellar [1]” with help from theoretical physicist Kip Thorne [2], and the images from that movie do appear to match reality [3]. But I find it facinating that astrophysicist Jean-Pierre Luminet [4] generated an image of a black hole in April of 1979 [5]!
It's sad to think that Disney's [6] “The Black Hole [7],” which came out in December of 1979, could have not only been the first Hollywood portrayal of a black hole (which it appears it was), but it could have been an accurate portrayal of a black hole. Ah well …
[1] https://www.imdb.com/title/tt0816692/
[2] https://en.wikipedia.org/wiki/Kip_Thorne
[3] https://www.sciencenews.org/article/black-hole-first-picture-event-horizon-telescope
[4] https://en.wikipedia.org/wiki/Jean-Pierre_Luminet
[5] https://www.engadget.com/2017/04/19/black-hole-image-jean-pierre-luminet/