The film poster follows the codes and conventions of a film poster through the information at the bottom and the symbol of the production company in this case Warner Bros. It also uses the image of the Hogwarts Express which was also used on the book front cover allowing both poster and front cover to relate, however also showing there will be some differences in the movie through changing the colour of the train to black and red. We are also able to see the setting and the characters who resemble what they should actually look like in the novel, which is something the films did really well on. The poster uses a blueish tint which adds to this magical and mysterious affect however it also allows everything to look real.