Question: This japanese actor lent his voice to the fourth and fifth installments of the "Transformers" franchise and was in a  2006 Japanese-American war film directed and co-produced by who?
Sentence (from "Ken Watanabe"): Ken Watanabe (渡辺 謙 , Watanabe Ken , born October 21, 1959) is a Japanese actor.
Relevant evidence: Yes