During the wedding scene, Mark and Julie Walters were found in the same position as the two protagonists of the Titanic aboard the boat, wind in hair, and they had fun, off-camera, replayed the scene to worship their own way. Mark Williams imitated it very well Julie Walters turned to him with a voice imbued with a passionate love: "Oh, Jack ...!"

For James, it was the 7 Potters: They have 2-3 weeks to turn, sometimes day and night, and it was a nightmare, but it was very funny to see Dan twin scan their every move and then imitate to perfection, allowing them to discover the mime they were Mark Williams also described, reinforcing actions, that Dan would have a different posture as characters, like Fleur who walks in a very straight, and Ron, who is prostrate on himself, his head bowed.

Mark chose the final scene where Voldemort steals the Elder Wand from Dumbledore's tomb in because he thought it was the perfect split.

Clémence has sided with the dance between Harry and Hermione in the tent, while Mark Williams asking if this scene was originally in the book or not.

And finally, Oliver loved to cut his ear (yes, really!) Because he had always wanted to get his head to the square for a film.

On the subject of new books that J.K. Rowling might write, the twins are adamant: They want a spin-off on the shop joke twins! Or a sequel in the past that dates back before Harry, because otherwise they could not play in movies that would.

Mark Williams as Mr. Weasley, is also fascinated by Muggle objects. He likes to know how this or that, and reading the books before playing in the film, he was immediately seen in the role of Arthur, because he resembled him both physically and mentally. He hoped to get the role, and his wish was fulfilled.