Behind the scenes of Just William
It might be the summer holidays but for some kids the work is only just beginning.
Filming starts for the new CBBC series Just William this week and the stars are gearing up for a busy time in front of the cameras.
The show, set 60 years ago, follows the adventures of a famously naughty 11-year-old boy called William.
Along with learning lines, lots of the cast are getting new clothes and haircuts so they look the part too!
Just William started out as a series of books by Richmal Crompton. It has been made into a TV show lots of times before.
Newsround got some special behind the scenes access before the cameras started rolling!