When I read that I thought "That sounds familiar..." And after 15 seconds I connected it to Titanic.
They are a nice match, but I've never even seen the movie (I should, I know) and I immediately thought of Titanic.
My first reaction was they're such lovely names, Titanic didn't even cross my mind until I looked at the previous posts!
What intersting to me - I just want to add - is that I think if you went with Kate and Jack you wouldn't have as much of an association. Maybe it's because Leo DiCaprio was/is so popular and famous, but Kate Winslet was and still is a little more subtle in her fame. Sorry, just kind of thinking out loud here :)