Everybody knows the disaster that was the Hollywood "adaptation" of Dragonball... and still the scary news about possible adaptations of Sailor Moon, Ghost in the Shell, Cowboy Bebop, Death Note and so on...
But at the same time, Japan produces successful live action adaptations like the Evangelion movies, Usagi Drop, Space Brothers, Rurouni Kenshin, Lady Snowblood...
So what would be necessary for Hollywood actually do a reasonable adaptation? Which genre would be more successful? And what works actually would have a chance?