Long-gap sequels, or "legacy sequels", are a tough nut to crack. Picking up an intellectual property from ten, twenty, thirty years or more ago, dusting it off and making something hopefully new and exciting out of it isn't as easy an undertaking as you might think. You have to draw enough from the original source material(s) to please older fans while remaining accessible to new audience members. I am immensely happy to say that Mary Poppins Returns is one of the best I've seen.
