As previously posted, Harrison Ford is appearing in Uncharted 3's Japanese television commercials.
The above video shows Ford playing Uncharted 3 and talking about the game. It's the best clip of the bunch—far better than the actual commercial, which feels phony.
The commercial does feature Ford speaking Japanese as well as his calligraphy. Ford wrote "スゲェ", which means "fantastic" or "great", along with his name.
I like hearing Harrison Ford talk about Uncharted. It's like hearing my mom talk about video games, which isn't necessarily a bad thing.
Thanks, PoweredByHentai and tobz1000 for the tip!