Nerds author Michael Buckley on Elton John film project

The author of the best-selling children's book series Nerds is to collaborate with Elton John on a film adaptation of his works.

Michael Buckley's stories follow five "socially-awkward kids" who are secret agents, and whose perceived weaknesses are actually their superpowers.

He spoke to BBC Breakfast about why the books have been so popular and his hopes for the film.