Letterboxd is a social networking service dedicated to film enthusiasts. It allows users to share their taste in films, create and publish film reviews, track films they have watched, and maintain a watchlist for films they want to see. The platform offers both free and paid subscription options. The paid tier, known as Letterboxd Pro, provides additional features such as personalized statistics, an ad-free experience, and custom lists of user-defined films. Users can also engage with a community of other film lovers by following friends, liking and commenting on reviews, and participating in discussions about various films.