I saw The Wolverine this weekend as well. I have to say I enjoyed the film, but I'm extremely disappointed that they decided to put "adult" language in the movie on multiple occasions. Look, I understand that "cursing" is becoming more mainstream and that many people don't care if their children hear "F" bombs being used, but I just think it was unnecessary. It's one thing for movies that are trying to be "real" to use language as a part of that process, but comic book based hero movies really have no reason to do such a thing. The movie was rated PG-13 as most previous Marvel movies have been, but this is the first time I can remember where they have allowed such kind of language.
I've been around comic books as a fan, collector, and reader since I was a child. While I understand the genre of "adult oriented comics" in terms of subject matter, theme, tone, violence, etc., Marvel has done a good job of keeping it's superheroes "kid friendly" while at the same time enjoyable for older generations as well. We allowed my 8 year old son to watch The Avengers after we had seen it first and knew that there was nothing that he shouldn't be exposed to within the film. Sadly, we will not be able to do the same with The Wolverine for quite some time. I understand some will call me "old fashioned", "overprotective", or say that I'm living in a "fantasy world" due to my opinion on this, but I just take my responsibility as a parent seriously and I won't intentionally expose my children to language like that at such a young age. That's why I think such a decision on the part of the movie creators was so senseless. Why alienate a whole audience group for no legitimate reason?
Sure, you could argue that the movie was PG-13 and therefore not meant for younger viewers, but as a comic book based film you gotta know that many families would consider buying it on Blu Ray or DVD for younger children to watch at home if not actually taking them to the movie in the theater not expecting that kind of language since none of the previous films have included it.
So, for me, the final analysis is that The Wolverine was a fun movie for older teens and adults. They have done a good job bringing much of the comic book character to life on the big screen (love the hair), but in some ways they have gone too far (the language) and crossed lines that even the comic doesn't generally cross.