It's quite confusing, so if the lady friend is intelligent I would recommend it. If she is one of those Twilight junkies then this movie definitely wouldn't intrigue her at all.
I almost guarantee that I'll see it again at some point. I felt like I understood a majority of the film when I was leaving but like what another poster said, it's worth another viewing to grasp all the small things that you might've missed.
I agree completely. I've always been a huge Kubrick and Hitchcock guy, but Nolan is really stepping up his game. Every one of his movies are intelligent, complex, and very well done. He's definitely the premiere director of today's era.