The Hunger Games is useful for English practice if you can already follow natural conversations. Following the story requires attention, so language difficulty is not the only challenge here. The vocabulary is usually clear and direct, which makes the listening experience less intimidating for lower-level learners (more than 79% of the words come from common English vocabulary). Conversations usually leave enough room to process what is being said. The Hunger Games works best for learners around B1/B2 who are ready for a more complex story.