A: Yes, the 4K Blu-ray released in Italy includes Italian audio. Also on some digital stores.
A: If you own a multi-language disc or digital copy, switch audio track in your player. For separate audio files, use MKVToolNix (only with legal backups). Would you like help finding legal streaming links for your region or instructions on adding Italian subtitles to a video file you already own? the Il mondo perduto - Jurassic Park download in italian