

The songs, written by Tim Minchin, are marvelously witty, and Warchus directs them at a clip. The only moments of cross-generational kindness come from one teacher (Lashana Lynch), who is too tremulous to stand up to her boss, and from a traveling librarian (Sindhu Vee), who allows Matilda to spin fictions instead of entrusting her with her fears. “Discipline! Discipline! For children who aren’t listening!” Trunchbull croons into a bullhorn while forcing her charges through a muddy obstacle course littered with barbed wire and explosives.

Her school’s motto is “Bambinatum est magitum” - “Children are maggots” - and its headmistress, Agatha Trunchbull (a go-for-broke Emma Thompson), is the type of monster who gets introduced chin hair first, the camera then tiptoeing backward to gawk at her broken capillaries and drab olive dress, padded at the shoulders and bosom until she resembles a tank. Matilda’s parents (Stephen Graham and Andrea Riseborough) are dimwits and cheats. When Weir, just 11 when she filmed the movie, narrows her blue eyes and sings, “Sometimes, you have to be a little bit naughty,” you believe she’s capable of conquering anyone who blocks her path.

His writing forever burned with a youthful sense of injustice, and among the many smart decisions the director Matthew Warchus and the writer Dennis Kelly have made in adapting “Matilda” for the stage, and now screen, is reimagining their title character, played with empathetic ferocity by Alisha Weir, as a bit of a proto-Dahl herself, a bright child bursting with stories that take aim at the adults who try to trod on her intelligence. The novel was Dahl’s righteous payback for his own British boarding school education where the instructors freely beat the students and slipped slivers of soap into boys’ mouths at night if they snored. Roald Dahl was 72 when he published his tale of a telekinetic girl genius avenging herself upon on a school headmaster who shot-puts kids out of the classroom window. Bitterness never tasted so sweet as it does in “Roald Dahl’s Matilda the Musical,” a jolt of sour candy guaranteed to make you grin.
