David Lynch's 10 Clues to Unlocking "Mulholland Drive" :
1- Pay particular attention in the beginning of the film: at least two clues are revealed before the credits.
2- Notice appearances of the red lampshade.
3- Can you hear the title of the film that Adam Kesher is auditioning actresses for? Is it mentioned again?
4- An accident is a terrible event... notice the location of the accident.
5- Who gives a key, and why?
6- Notice the robe, the ashtray, the coffee cup.
7- What is felt, realized and gathered at the club Silencio?
8- Did talent alone help Camilla?
9- Notice the occurrences surrounding the man behind Winkies.
10- Where is Aunt Ruth?