Funny. My friend (not an Arashi fan) suggested we watch Tekkonkinkreet and I agreed because it was an anime movie...I love anime. XD While we were watching, Kuro's voice sounded familiar and I was already thinking that it belonged to Nino. I didn't want to tell my friend because I didn't want her to think that all I ever think about was Arashi, Arashi, ARASHI! (well, I actually do. jk XD) I found out that it WAS Nino's so it made me love the movie even more. Haha.
It was my first time to watch an anime with Nino (or any other Arashi member. Have they?) as a seiyuu. I thought he did great job and that his voice fitted the character perfectly. It's an epic movie btw...if you're into yakuzas, gore and violence.