It looks like you're referring to a file name for a 3D version of the movie Gravity (2013).
3D / Half-SBS: Indicates the video is in 3D Side-by-Side format. In this mode, the left and right eye images are squeezed to fit into a single 1080p frame; a 3D-capable TV or player splits and stretches them to create the depth effect. Gravity.3D.2013.1080p.BluRay.Half-SBS.DTS.x264-...
BluRay: The original source material used for the encode was a physical Blu-ray Disc, ensuring high base quality compared to "WebRip" or "CAM" versions. It looks like you're referring to a file
Performance: Sandra Bullock delivers a career-best performance, carrying the emotional weight of the film almost entirely on her own. Gravity.3D.2013.1080p.BluRay.Half-SBS.DTS.x264-...