Indicates that the audio track is in European Spanish. .mp4: The digital video container format. Where to Watch Legally
The specific file name you provided uses "leetspeak" (replacing letters with numbers) to likely bypass automated copyright filters. "Licorice Pizza" 2021: The year of release. l1c0r1c3.p1zz4.2021.hdrip.720p.castellano.mp4
To find exactly where it is streaming in your current location, you can check JustWatch. Indicates that the audio track is in European Spanish