I should also consider that the user might not be aware of the terms they're using. Explaining what WEB, 1080p, MKV, and soft subs mean in a brief manner would add value. However, since they asked for a complete write-up, the explanation should be comprehensive but not overly technical for clarity.
Next, the technical aspects: 1080p resolution means high definition, which is standard for most modern content. WEB format typically implies that the video was extracted from a streaming platform, so it might be an online rip. Soft subs mean the subtitles are separate tracks that can be toggled on/off in the player, unlike hard-coded subtitles which are burned into the video.
Need to make sure the response doesn't provide any download links or instructions on piracy. Instead, guide them to legal platforms. Also, mention that if the movie isn't available, they might have to wait for a legal release or check regional availability.