@oralloy,
About that Uncle Tom film, I am a bit skeptical about its apparently high reception. It only has 3 professional critical reviews on Rotten Tomatoes; for comparison, Small Axe: Mangrove has 121 critical reviews and Da 5 Bloods (which was released around around same time as Uncle Tom) has 285 critical reviews.
As for its IMDB rating (9/10 from 4,773 users), it seems it was targeted so that could get high ratings. It appears all of the reviews were by users who had only written only one review and the usernames are very generic.
I highly doubt it is better than Citizen Kane (which has a rating of 8.6/10 from over 400,000 users)