Correction:This was not actually an error but was intentional. At a website about this movie it explains this and other things about the movie. "A hint by Director Nolan that Memory is unreliable and that we are dealing in this movie with an unreliable narrator. As Lenny puts it: "Memory can change the shape of a room; it can change the color of a car. And memories can be distorted. They're just an interpretation, they're not a record, and they're irrelevant if you have the facts." For more about this fascinating movie go to: http://www.christophernolan.net/memento.php.
Correction: This was not actually an error but was intentional. At a website about this movie it explains this and other things about the movie. "A hint by Director Nolan that Memory is unreliable and that we are dealing in this movie with an unreliable narrator. As Lenny puts it: "Memory can change the shape of a room; it can change the color of a car. And memories can be distorted. They're just an interpretation, they're not a record, and they're irrelevant if you have the facts." For more about this fascinating movie go to: http://www.christophernolan.net/memento.php.