The Martian can help advanced learners become more confident with fast and natural English. At an average of around 75 words per minute, the dialogue is generally manageable, though some exchanges require more attention. Some scenes use denser language, so learners may need to pay close attention to word choice and phrasing. Some parts may require more focus, but the main story remains easy to follow. If your English is close to B2/C1, The Martian can be useful for building vocabulary range.