A young boy is bored spending time with his dull grandma until he discovers she's an international Jewel thief.
Julia McKenzie
as Granny
Reece Buttery
as Ben
David Walliams
as Mike
Miranda Hart
as Linda
Rob Brydon
as Mr Parker
Joanna Lumley
as The Queen
Robbie Williams
as Flavio Flavoli
Harish Patel
as Raj
Claudia Winkleman
as Herself
Steve Speirs
as PC McClintock
Patrick Brennan
as Beefeater
George Hill
as Terrence
