Simon Pegg stars in Alzheimer's Research UK's new awareness campaign, Dementia Uncovered, which highlights the impact of dementia on the brain, using a 3D printer to visualise the destructive nature of the disease with help from electronics company Ricoh.

The Ready Player One star commented 'Dementia affects millions around the world, and the lives of individuals and their families are being turned upside down in its wake... Dementia Uncovered helps visualise what's going on in the brain of someone with dementia and the physical impact is clear to see'.