When Ken Watanabe
worked with Christopher Nolan on 2005's Batman Begins
, the director was an up-and-coming filmmaker with a trio of impressive low-budget pictures under his belt. Five years and two superheroic box office smashes later, the helmer is Hollywood's hottest property, and in his latest mind-bender Inception
he brings in Watanabe to play Saito, a businessman who makes Leonardo DiCaprio's Cobb an offer he can't refuse. DS
quizzed Watanabe on keeping secrets, working with Nolan for a second time and DiCaprio's action chops. Click 'play' below to watch the interview. Inception opens in cinemas worldwide this Friday.