Know George Lucas's Star Wars (1977) and you can guess the plot of Kurosawa's The Hidden Fortress (1958).

CNN: Kurosawa Akira

Lucas insists that The Hidden Fortress, the 1958 adventure about two bickering commoners who help a rebel princess, provided the story map for Star Wars.

CNN: ASIANOW - TIME Asia

Which leaves only Rolex, an unstoppable force that holds 25% of the high-end market with basically one watch, the Oyster, while keeping the company's inner workings almost completely hidden behind a gold-clad fortress in Geneva (see "As Tight as an Oyster").

FORBES: Time Is Money