Celluloid is described as '(formerly GNOME MPV) is a simple GTK+ frontend for mpv. Celluloid interacts with mpv via the client API exported by libmpv, allowing access to mpv's powerful playback capabilities' and is a Media Player in the video & movies category. There are more than 50 alternatives to Celluloid for a variety of platforms, including Windows, Linux, Mac, Android and Flathub apps. The best Celluloid alternative is VLC Media Player, which is both free and Open Source. Other great apps like Celluloid are MPC-HC, MPV, PotPlayer and SMPlayer.