In the movie he is definitely Canadian. He grows up in Canada but at some point goes to the USA to fight in the American Civil War. He stays and fights in a number of US wars before returning to Canada - it would have been nice if the WWI or WWII scenes had put him in a Canadian uniform but go figure. He was born in Canada and he frequently returns to Canada, but he likes to fight and the USA gives him more wars to join.
I have no idea if this is the same logic that influenced the story, but my mate nailed a pub quiz question about Mount Logan in Canada after speculating that Wolverine was named after his own country's landmark.
How about David Tennant's English accent for Doctor Who?
Actually, how do English people think of it? Because when I learned he naturally speaks in a thick Scottish accent I was very surprised.
Can't speak for an English person but to me, as a Scot, he still sounds totally Scottish
Mel Gibson in Braveheart - now that was a beauty of an accent! ('beauty' used in an ironic fashion) Terrible, although in true flag-waving and arse-flashing patriotic fashion, someone decided to build a statue of Mel Gibson at the bottom of the Wallace Monument...