The Dukes and Duchesses of Cambridge and Sussex narrated the short film as they launched the Every Mind Matters initiative, which is aimed at empowering people to manage the early symptoms of poor mental health.
The three-minute video, which also featured the likes of Nadiya Hussain, Professor Green, Gillian Anderson and Davina McCall, was screened on Monday.
The platform, which has been endorsed by the Royal College of GPs, will allow users to take a health quiz and offer them a personalised "mind plan" with practical tips around managing anxiety, low mood, sleep and stress.
Health officials hope it will empower people to practically manage their symptoms to stop their mental health escalating, which would in time reduce pressure on clinical services and free up capacity.
Via Standard