We're nearly there now, nearly at the end of the saga, nearly at the point where the mystery is solved and there is only the DVD release to look forward to.

There are no more Hogwarts adventures: no more classes, no more Quidditch, no more detentions. Harry, Hermione and Ron are hunting Horcruxes - those bits of Voldemort's soul that he keeps separate and hidden, so he cannot die - and moving from one dark, desolate locale to another as they struggle to come to grips with the enormity of their task. Their travels are claustrophobic, punctuated by horrors.

But this is still a Harry Potter film, suffused with genuine warmth and humour, and concerned, above all, with relationships. It is clear that whatever horrors Harry has to face, he will not be alone.

The film introduces new characters - zany Xeno Lovegood, Luna's father; dissolute Mundungus Fletcher; mysterious Gellert Grindelwald; and, at last, Bill Weasley, in the (only slightly mutilated) flesh - along with new secrets, most notably the Deathly Hallows themselves, three supremely magical objects that threaten to change everything.

There are some beautiful moments - a desperate woman trying to convince a sinister tribunal that she is a witch; an ambiguous dance to a Nick Cave song; a set of seven Harry Potters undressing in Privet Drive. You don't need me to tell you to see Deathly Hallows: we have been on this path for years, and there is only one way forward.