Memento is a 2000 American neo-noir psychological thriller film directed and written by Christopher Nolan, and produced by Suzanne and Jennifer Todd. The film's script was based on a pitch by Jonathan Nolan, who later wrote the story "Memento Mori" from the concept. It stars Guy Pearce, Carrie-Anne Moss, and Joe Pantoliano.

Can we draw the following conclusion?
Memento has been seen by everybody.
It's impossible to say