Beyond legality, consider the artists:
If cost is the barrier: Libraries offer free Blu-ray rentals. Streaming services (Paramount+, Peacock, Pluto TV) frequently show The Godfather with ads for free. There is no excuse for piracy. The Godfather 1972 1080p BrRip X264 Dual Audio -English
This trailing tag usually indicates that the primary or default audio is English, or that the file includes English subtitles. It can also be a label from the release group. Beyond legality, consider the artists:
Unlike a "Web-DL" (downloaded from a streaming service like Netflix or Paramount+), the BrRip designation indicates that the source material is a retail Blu-ray disc. If cost is the barrier: Libraries offer free Blu-ray rentals
If you own a Blu-ray, you can use MakeMKV (free) to create a lossless MKV backup. Then use HandBrake (free, open-source) to encode to x264 1080p with your desired bitrate. You can mux in a second audio track from a foreign Blu-ray disc you legitimately own. This is legal under fair use for personal backup in many countries (check local laws).
This refers to vertical resolution: 1920x1080 pixels. It is Full High Definition (Full HD). For a film shot in 1972 on 35mm film (native resolution equivalent to ~4K-6K), 1080p is a significant downgrade from a 4K master but still excellent for most home screens under 65 inches. True 1080p means progressive scan (each frame drawn sequentially), avoiding interlacing artifacts.