Finding Dory can be good for learning English if you already understand everyday conversations and want more consistent practice. Some conversations move quickly, so learners may need to listen to certain parts more than once at first. The vocabulary is usually clear and direct, which makes the listening experience less intimidating for lower-level learners. Because the plot is fairly straightforward, learners can focus more on the dialogue than on figuring out the story. It should work best near B1/B2, especially for learners prepared to handle faster dialogue.