Prison Break is a good choice for confident learners looking for more realistic and demanding listening practice. At an intermediate level, the main story should be easy enough to follow. 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. If your English is close to B2/C1, Prison Break can be useful for building confidence with more complex narratives.