Horrid Henry's Theo Stevenson and Mathew Horne on movie

Last updated at 11:56

A boy wizard has dominated our cinema screens for the past decade, but now a naughty schoolboy is here to steal the limelight. Step forward, Horrid Henry.

The Horrid Henry books by Francesca Simon have sold millions of copies and been turned into a hit TV show.

And now 13-year-old Theo Stevenson from Essex is bringing the character to life on the big screen.

Theo and his on-screen dad, played by Mathew Horne, tell us what to expect from the first movie...

Horrid Henry: The Movie pictures courtesy of Vertigo Films