Stolen idea from Karl Pilkington's "The Love of Two Brains"
He proposed this film years ago....https://www.youtube.com/watch?v=l_6gnqucgOc
Saving someone's brain in another person before they die...and continuing a romance
No! Stolen from Curt Siodmak.
I just watched a brief pre-release BS interview with the writers and how they came up with the story. I think the better explanation was that they stole it from Curt Siodmak's novel Hauser's Memory (& 1970 TV movie of the same name.)
Oh well! It just proves once again that since 2000 it's been the decades of the knock-offs, rip-offs, and the Madoffs.