Known as the best place to find and recommend new movies, Letterboxd has become an integral element of the film community over the years. Funded in 2011 with a focus on sharing different opinions on cinema, it quickly became the definitive social media for movie enthusiasts, where users can follow and interact with each other through their reviews, create lists, sort their watchlists, and most notoriously, share their findings, ratings, and opinions about movies from all over the world.
Source:https://www.cbr.com/movie-stars-directors-letterboxd-scorsese/