This photo (with Dan Radcliffe returning as Harry Potter, now age 15) is from the opening chapter of Order of the Phoenix, by JK Rowling. In these scenes, Dementors (gosh, we sure know about them these days) are roaming around Privet Drive and attack Harry Potter and his cousin, Dudley.
Here we have our first look at that most horrible of horrible teachers, the Grand Inquisitor herself, Delores Umbridge (Imelda Staunton) with Professor McGonagal (Maggie Smith) and Professor Trelawny (Emma Thompson), as Argus Filch (David Bradley) looks on. This is no doubt that this is the scene where Umbridge sacks Trelawny - this scene alone will be worth the price of a ticket.
We can hardly wait.