Ya know, I was kind of laughing when I first read this, but then I thought what the heck, I didn't have anyone to ask when I ventured out so why not.
42 years old here, married 18 years, mind you, to the same woman, which in this day and age is saying something!
Dude, trust me, don't try so hard. Be yourself, they will like you or they won't.
If you want to take her out, tell her so, simple as that. There is no trick, no line, no BS that anyone worth a crap is going to buy into. Now, here is the tough part, if a Line or some BS DOES work, you don't want her.
James Bond is good for the movies and books. Don't try too hard. If she is worth being with, she is worth being yourself with. The point of a good relationship is simply being comfortable being with them.
Now, as for "how" to do it, simply call her up and say that you want to spend some time with her. Mini Golf, a movie, McD's or whatever, you just want to spend the free time you have with her. I'm betting that a sandwich and sitting on a park bench will be just fine.