One of Johnny Depp's most beloved (if by a cult audience) roles came in the adaptation of his friend Hunter S. Thompson's "Fear and Loathing In Las Vegas," the memoir of the gonzo journalist's time tripping on LSD while covering the Mint 400 motorcycle race. It's largely a fun, upbeat adventure, with drug trips leading to crazy, unexpected circumstances.Now, Depp is starring in another Thompson adaptation, a semi-fictional book that, though started in 1958, wasn't published until 30 years later.