Try the "Subtitles-Only" challenge. Watch a scene with Spanish audio and Spanish subtitles first. Then, turn the subtitles off and see how much your ear has adapted to the melody of the language. If you'd like to dive deeper into this topic:

Visualizing slang and idioms helps them stick in your memory.

recommendations (e.g., sci-fi, romance, documentaries) Country-specific film lists (e.g., Spain, Colombia, Chile)