I think most of the black and white cinema era will definitely be forgotten by the general public. Only those that would attend film schools would possibly get into Casablanca, Citizen Kane, and all the other classics. Godfather will probably be another cinematography study.

People will probably be amazed by what technology from the late 80's early 90's could do with Top Gun, Jurassic Park, The Terminator. After that they'll probably be awwed by Tarantino movies, Scorsese movies like The Departed, Fight Club will probably be a thing. So will American Psycho. They will probably be amazed on what was Nolan been able to pull out with Inception and the Dark Knight trilogy.

The comic book movies will still be your standard entertainment movies with huge over the top budgets and high on CGI. Flicks like American Pie, She's All that, I know what you did last summer will be seen like cringey and raunchy B rated comedies that probably nobody will think they were good movies in the first place.

A lot of biopics will probably saturate the film industry so the go to movie buff of the 2100's would understand who was Tarantino, Cameron, Scorsese. They'll probably make a biopic about Gun's & Roses, Rolling Stones and almost of the successful rock bands that lived through the ages.