Stephen Fry has given his backing to a film by Cambridgeshire charity Alzheimer's Research UK.
The animation 'Santa Forgot Christmas' has just been re-launched in the hope of raising awareness of dementia.
Stephen Fry, who provided the voiceover says he hopes future generations "will only be reading about Alzheimer's and not experiencing it".
Launched last year the video reached almost 14 million people online.
It's hoped this year, the video will be seen by even more people.