Matilda’s mothers and fathers (Stephen Graham and Andrea Riseborough) are dimwits and cheats. Her university’s motto is “Bambinatum est magitum” — “Kids are maggots” — and its headmistress, Agatha Trunchbull (a go-for-broke Emma Thompson), is the sort of monster who will get released chin hair 1st, the digicam then tiptoeing backwar