How Hollywood cashed in on the latest tech boom-and changed the face of Silicon Valley.
When Ashton Kutcher first heard about 50 Cent's nine-figure Vitaminwater windfall in 2007, the actor realized he'd been missing out. He soon followed the rapper's formula-seeking equity instead of cash for endorsement deals-but with a twist: as the first person to top 1 million Twitter followers, Kutcher leveraged his social reach to accumulate stakes...