Finding Dory features loads of secret references to other cool films, including Finding Nemo, Toy Story and WALL-E. Here are some of the best!
When Dory is at the Marine Life Institute, you can see a picture of Darla from Finding Nemo in the background. Darla was the girl with braces who had a habit of accidentally killing fish.
If you look really closely when Hank is ready to drop Dory into the exhibit, you'll see a calendar on the wall from the company WALL-E.
Remember the Pizza Planet truck in Toy Story? It's also appeared in A Bug's Life, Monsters Inc. and Cars. It's in Finding Dory too, during the chase sequence on the highway.
If you watch the film until after the credits, you get to see what happened to Nemo's buddies from Finding Nemo!
There's a short film that's shown before Finding Dory at cinemas about a character called Piper the Bird - and there's a poster of Piper at the Marine Life Institute!