Reservoir Dogs can help advanced learners become more confident with fast and natural English. Some conversations move quickly, so learners may need to listen to certain parts more than once at first. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. The complexity of the plot makes listening more challenging because learners also need to keep track of what is happening. If your English is close to B2/C1, Reservoir Dogs can be useful for getting used to faster spoken English.