First, "Prometheus" is a movie from 2012, directed by Ridley Scott. The format here is 1080p, which means it's a high-definition version. X264 is the encoding codec used for the video. The "NL" probably refers to Dutch language, as "Nederlands" is Dutch. "Subbed" means it has subtitles, and "BRADJE" might be the uploader's username. The extension .mkv is a Matroska file, which is common for videos.