Letterboxd is a social networking platform designed for film enthusiasts to share their movie experiences. Users can create profiles, log films they've watched, and write reviews. The platform allows members to follow friends and discover new movies through curated lists and recommendations. In addition to logging films, Letterboxd features a community aspect where users can engage in discussions, rate films, and participate in challenges. The site also offers a premium subscription that unlocks additional features, enhancing the overall experience for avid movie watchers and critics alike.