A biographical film of JMW Turner could help to protect the artist's decaying Twickenham villa, according to the Turner's House Trust (THT).

Director Mike Leigh's award-winning Mr Turner is released later this month and explores the later life of the eccentric painter.

But Turner might have pursued an alternative career as an architect after he designed a built a country home in Sandycoombe Road for him and his father.

Mr Leigh visited Turner's former home in Sandycombe Lodge along with actors Timothy Spall, who plays Turner, Paul Jesson who portrays 'old dad' and Nick Jones as fellow architect Sir John Soane.

But the Grade II-listed home, largely unspoilt but for a few later additions, is severely threatened by damp and neglect and is in desperate need of restoration.

Catherine Parry-Wingfield, chairman of THT, said: "With additional damage caused by extreme weather conditions in recent years, this is now urgent.

"We have generous promises of grants and funding, which we must match in order to proceed.

"With every pound we are closer to saving this Turner treasure for future generations, but we still have a long way to go.

"We hope that, as this new film will no doubt inspire people to visit the artist’s wonderful masterpieces in our galleries, they will also support a lasting legacy for his country home to be enjoyed by future generations."

The building was added to English Heritage’s Heritage at Risk register last year.

The trust has already received a number of match-funding, but now requires further match funds of at least £600,000 to press on with the restoration.

Turner completed the house in 1813 and used it as a country retreat, where he would sketch along the Thames on foot, fish in the river and entertain friends, such as Sir John Soane.

Mr Turner is released in cinemas on October 31.

For more information about Turner’s House and the appeal, visit turnerintwickenham.org.uk.