A: Yes. Amazon Prime Video streams in 1080p (and 4K) using efficient codecs (including x264 or the newer AV1). When you download for offline viewing on Prime, the file is encrypted—unlike a BRrip.
Below is a technical report breaking down each component of that specific file identifier. Identifier Technical Detail Meaning The Godfather (1972) Title & Year The 1972 crime epic directed by Francis Ford Coppola. 1080p Vertical Resolution A: Yes