Like many onscreen Scrooges before him, Ryan Reynolds’ character in “Spirited” is told that he will face his past, present and future. But he surprises even the spirit haunting him upon raising his hand and asking: “Like ‘A Christmas Carol’? The Dickens story? The Bill Murray movie with Bobcat Goldthwait?” “Yes, yes!” he is told. “Like the Dickens book, and the Bill Murray movie, and every other adaptation nobody asked for!” This irreverent humour is part of what makes “Spirited” — now playing in select cinemas and streaming beginning November 18 on Apple TV+ — a Christmas miracle in itself. W…