Potter is threatened by a notorious escaped prisoner and ally of the Dark Lord. The third in the sequence is a touch darker, expanding the movie universe away from the quest-based adventures of parts 1 and 2. A step up all around, with confident direction, better effects, and actors maturing into their roles.
Hercule Poirot holidays in Egypt; murder is soon afoot. Quasi-sequel to Murder on the Orient Express. Breezy escapist fun with a rich cast of character actors and bright young things hamming/preening respectively, though its clumsy treatment of non-whites plays as racist rather than as innocent comic relief.
Harry and friends search for a hidden part of Hogwarts. Second and perhaps the least of the Rowling adaptations, this mimics the structure of the first, though adds enough novelty to please fans, and begins to develop the series mythology.
An orphan boy finds that he’s a famous wizard child; his education begins. The first Potter movie is a straightforward breeze through the book. Awkward early performances and under-par CG aside, this is reasonable family fun, though no classic.
A writer finds he has no option but to allow an old lady to live in a van in his drive. Charming and semi-fantastical comedy-drama which makes much of its strong lead performances, and offers some neat asides about writing and processes of adaptation along the way.