The chart-topping NHS Choir have signed a Hollywood film deal to tell their success story.

The Lewisham and Greenwich choir beat Justin Bieber to the Christmas number one spot last year.

British producer Julia Verdin, whose past credits include The Merchant Of Venice and 2 Jacks, has secured the rights to tell their story.

The movie will feature the individual back stories of the 32 choir members and the work they do, documenting their journey to get their song "A Bridge Over You" to the top of the charts.

Their campaign received a boost when Bieber told his 80 million Twitter followers to "do the right thing" and help the choir reach the top of the singles chart.

Choir co-ordinator and children's physiotherapist Caroline Smith said: "We are thrilled that the world will now get to see our incredible story. People will see the massive power achieved when everyone comes together'."

Verdin said: "I believe people will love watching this remarkable and uplifting story which has already touched the hearts of millions in the UK."

The choir's debut album, Something Inside So Strong, will be released on June 3. Royalties will be paid into the Lewisham and Greenwich NHS Trust.