One Direction star Niall Horan and X Factor boss Simon Cowell are among celebrities supporting The BFG Dream Jar Trail, an initiative set up to raise money for children around the world.

The project launches in partnership with Unilever to help raise money for Save the Children, and other stars involved include Cara Delevingne, Graham Norton, Dame Dame Helen Mirren, Sir Mark Rylance and Steven Spielberg, who have all put their childhood dreams into jars which will be auctioned off. Horan's dream is to ride in a hot air balloon and he commented 'As a little boy, I liked the idea of floating above the trees and looking down on the world from above'.