Phixius

Question: When Aslan and Peter are discussing the prophecy, Aslan lets slip that he's as concerned for his own family as Peter is for his siblings. I don't recall the books ever mentioning that Aslan had any relatives, so who is he referring to?

Answer: Aslan is referring to the Narnians as his family.

Phixius

Question: A friend of mine noticed that despite it being winter in Narnia for a hundred years, no one's breath is visible. Is this a mistake, a director's choice (since it could've been added in post) or an element of Narnia (I am not very familiar with the books)?

Answer: It was never mentioned in the book or the movie that breath wasn't visible, so it is a mistake.

Phixius