Danny Dyer to star in mental health film created by 17-year-old

Danny Dyer on the set of Stepping Stone (Chance 43 Productions/PA)

Danny Dyer is to star in a short film directed by a 17-year-old in a bid to raise money for mental health charities.

Stepping Stone is written, directed and produced by first-time filmmaker Noah Caplan, who was inspired to begin work on the project when his younger sister suffered a life-threatening accident.