Actor Allusion: Pam Ferris plays an overweight, sadistic woman who acts incredibly cruel to an orphaned related-by-marriage child relative (her step-sister's daughter, Jenny Honey) and seems to believe that it's In the Blood when it comes to how rotten children are. Also, she is perfectly happy simply assuming how nasty children are without gaining any proof. And, really, compare these lines:
Trunchbull: The apple never rots far from the tree! Harry Potter's Aunt Marge: If there's something wrong with the bitch, there's something wrong with the pup!
Dawson Casting: The older children are played by adults and they look it. It seems odd when they show up in Revolting Children.
Intentionally so: to a five year old on her first day at school, the place is full of intimidating giants who look like this.
Also Matilda is supposedly a 5 year old. But is played by 10 - 12 year olds. But baring in most of them are Older than They Look. However original Matilda Kerry Ingram could pass on her own but next to the others not so much.
A special mention goes to Sophia Kiely who was 12 by the time she left looked nothing like her age. Also she is regarded as one on the best Matilda's
Heather Tepe, of the Broadway production, is currently a swing for Lavender, Nigel, Amanda, Eric, Alice, and Tommy.
Technology Marches On: In today's age of cell phones with cameras, Mrs. Trunchbull's violent actions against the children "whom nobody would believe if you would have told them" wouldn't remain a Dark Secret long.
Throw It In: A minor example; As Matilda prepares to go on her first day of school she wears a blue sweater, but Mara Wilson thought it was too itchy and didn't like wearing it. So for the next scene when she gets in the car Wilson took off the sweater and left it folded on her lap.