Liam is too big for his boots. And his football strip. And his school blazer. But being super-sized height-wise has its advantages: he's the only eleven-year-old to ever ride the G-force defying Cosmic rollercoaster - or be offered the chance to drive a Porsche.

Long-legged Liam makes a giant leap for boy-kind by competing with a group of adults for the chance to go into space.

Is Liam the best boy for the job? Sometimes being big isn't all about being a grown-up.