This is the direct sequel to Avengers: Infinity War , where the remaining heroes attempt to reverse the actions of Thanos.
This is an unusual double extension. A .mkv (Matroska) file is a container that supports multiple audio and subtitle tracks, while .mp4 is a more universal format. Seeing both often suggests the file was renamed or modified for specific player compatibility. Context of the Sources This is the direct sequel to Avengers: Infinity
The video resolution (1280x720 pixels), often referred to as "Standard HD". often referred to as "Standard HD".