Withnail & I can help advanced learners become more confident with fast and natural English. Learners should expect a wider range of words and expressions than in easier listening practice. Also, jokes, quick reactions and casual exchanges are a regular part of the dialogue. At an intermediate level, the main story should be easy enough to follow. With the dialogue moving at a natural rhythm, viewers should catch most of it, although a few moments may still be challenging. For learners around B2/C1, this can be a practical choice for building vocabulary range.