- As time passed, Hermione’s hair grew longer and longer to show the time past.
- George was about to tell Fred that Harry was still alive, forgetting that Fred was already dead.
- In the scene where the kids are on the train, there is a chocolate frog. It is the first chocolate frog from the first film.
- Rupert Grint laughed so loud when he saw Emma Watson and Daniel Radcliff kiss. He was forced to leave the set because he was distracting the cast.
- There’s a poster where they were fighting the Death Eaters, that’s a musical that Daniel Radcliff and Richard Griffiths played.
- When Voldemort hugged Draco Malfoy, it looked very awkward. It’s Ralph Fennis’s improv.
- Horace Slughorn took a sip from Felix Felicius in the movie.
- In the last train scene, Tom Felton’s wife has a cameo as Draco Malfoy’s wife.
- In the final battle of Hogwarts, there was a Gryffindor scarf at the back of Snape that symbolized his bravery.
- Harry, Ron, and Hermione faced trolls, spiders, werewolves, and dementors symobolizing their growth in the first three movies.
- Snape sent the curses by McGonongall to the death eaters, playing the double-sided spy really well.
- We can see Lucius Malfoy’s tattoo in Azaban when he was a prisoner.
- Voldemort’s clothes’s clor faded when his power became weaker and weaker.
- Harry and Neville wore similar clothes as their parents in the Battle of Hogwarts .
