Stranger Things is a good choice for confident learners looking for more realistic and demanding listening practice. Learners will hear plenty of useful natural English, but some lines may still require a second listen. With the dialogue moving at a natural rhythm, viewers should catch most of it, although a few moments may still be challenging. Some parts may require more focus, but the main story remains easy to follow. If your English is close to B2/C1, Stranger Things can be useful for building confidence with more complex narratives.