Watch Supernova (2020) online

Supernova, a film directed by Harry Macqueen, tells the story of Sam (Colin Firth) and Tusker (Stanley Tucci), two men who have been in a relationship for twenty years and decide to go on a trip in a camper, crossing England. The two take the opportunity to visit friends and family and return to the places most dear to them.
The journey is also a sort of escape from a sad discovery, which changed their lives; in fact, Tusker has been diagnosed with early dementia for some years. The illness put a damper on their future plans and the couple realized that the only thing that really matters is to spend as much time together as possible.
During the journey Sam and Tusker discover that they have divergent ideas about the future and secrets hitherto never confessed emerge, which undermine their life plans, so much as to jeopardize their relationship. The two will inevitably find themselves facing the theme of the disease and how their love can survive it.