The key point is to turn your digital file into analog media (film), it does show inverse the B/W file and printing onto the plastic film in the video...
One known good product is Pictorico OHP film, using Epson K3 ink printer Pictorico
With that film, it's like having a 8x10 negative. You can do whatever wet printing method like Platinum or just simple contact print on B/W photo paper