It was really fun to watch the movie with the Ashburn Kids Book Club readers (and assorted siblings, friends, parents, etc.). Here are some of the comments and comparisons I received:
---The kids meet Mrs. Frankweiler earlier in the movie than in the book.
---Claudia meets with the museum curator in the movie but not the book.
---Jamie doesn't take money from the fountain in the movie.
---There are three Kincaid kids in the movie but four in the book.
---Claudia writes a letter to the museum curator in the book but phones him in the movie.
---In the movie Claudia has an argument with Jamie and he leaves (but Claudia goes after him).
---The Kincaids had banana splits in the movie.
---The kids spot the Michaelangelo sign on the bottom of the angel statue while ducking down to hide; in the book they only see the imprint on the velvet after the statue is moved.
---The book has more plot involving Jamie and his money.
---Claudia doesn't take a bath at Mrs. Frankweiler's house in the movie.
---In the movie, the kids get picked up from Mrs. Frankweiler's house by their parents but in the book they get driven home by the chaffeur.
---In the book, the children never meet Mrs. Frankweiler at the museum like in the movie.
---In the book, Jamie never got sick and was made well by the angel, as was implied in the movie.
---In the movie, the kids never rented a post office box.
And here's one that I noticed: in the movie, the statue is sold at auction for $25,000 but in the book, if I remember correctly, it's only $250. Inflation!
There was an even split between kids who liked the movie more than the book and the reverse--liked the book more than the movie.