I must admit when I first heard they were making an American remake of My Sassy Girl my stomach kinda churned. I wasn't sure that Hollywood could recreate the amazing korean film from 2001. Now there's good news and bad news... let's start with the good.
I like how they added a bit more playfulness to the movie giving it strange cut-scenes in between the main story. This added to the fun factor of the movie, but some may see it as just a simple waste of time. Using New York as the place setting for this film seemed typical but executed decently. And using one of the most recognizable cities in the world helped users become semi-comfortable. Both leading actors do a decent job, nothing too overly noticeable but decent.
Now the bad news, though the actors did a decent acting job.. you could still tell they're acting. When an actor feels his role and becomes the character the more enjoyable a film can be. For example Heath Ledger as The Joker in The Dark Knight, he did an amazing job. I wish the actors did the same, but to be honest it seemed to be stale at times.
Overall the movie is 1/2 bad. As a stand alone rom/com it does a pretty decent job. But for the hardcore fans it's really obvious that this movie will just never be as good as the original. It's definitely worth watching once, that way you can develop your own idea on this film. They did an OK job trying to port the movie, a lot of things were lost in translation and unfortunately with that happening it simply makes the movie OK.
