The string is a typical filename for a high-definition digital copy of the 2007 psychological thriller The Descent (specifically the Blu-ray rip).
For collectors and technical hobbyists interested in archiving physical media digitally, this 10 descent20071080pblurayh264aac
Matroska (MKV) is also possible, especially for scene releases. MKV is more flexible (it can handle virtually any codec), but it is less compatible with older Smart TVs. Given the simplicity of h264+aac , an MP4 container is statistically most likely. descent20071080pblurayh264aac
: The group's leader, Juno, lead them into an uncharted cave system instead of the tourist-friendly one they planned, seeking the thrill of a new discovery. descent20071080pblurayh264aac