The Blue Box, Mulholland Drive (2001)
In Rita's purse there is a blue key. It is ornate, with a triangular head.
At Club Silencio, after the singer falls, Betty opens her bag and finds a blue box with a triangular keyhole.
Back at the flat, Rita fetches the key from the hatbox. She turns round and Betty has gone. Rita opens the box and the camera moves into the black inside it. The box falls to the floor. The room is empty.
The second half of the film has a different key. At Winkie's, Joe shows Diane a plain house key, painted blue. "When it's finished, you'll find this where I told you."
Later the key lies on Diane's coffee table, and she sits and stares at it.
The box comes returns at the very end, in a paper bag behind Winkie's, held by the figure Dan dreamt about. Out of the bag climb the tiny old couple who said goodbye to Betty at the airport.
Lynch never said what the box is. "It's there and it's supposed to be there and certain things happen around it. And so you look at those things and what goes before and what goes after and then you make up your own mind."
Three of his 10 clues, printed with the DVD in 2002, lead to it. "Who gives a key, and why?" "What is felt, realised and gathered at the club Silencio?" "Note the occurrences surrounding the man behind Winkies."
