Se7en can help advanced learners become more confident with fast and natural English. The narrative adds extra difficulty because learners need to track events, motives, or character relationships. The language mixes everyday English with a few expressions that need attention, so it works best for learners who already have a solid base. Also, crime scenes may bring in words related to investigations, police or legal vocabulary. With the dialogue moving at a natural rhythm, viewers should catch most of it, although a few moments may still be challenging. It should work best near B2/C1, especially for learners prepared to handle a more complex story.