Having watched the clip, I'll quote this post to respond to both your questions.
To answer your first question, no, it is NEVER that easy. Gorgeous women are never in clubs by themselves/left alone without friends. Furthermore, women like that wouldn't be caught dead in a club like the one in that film - that place is damn near empty. Women like that are usually skipping long lines, hanging out in some guy's section, or dancing behind the DJ. They are rarely accessible, and wherever they WOULD be wouldn't allow for this eye contact unless they were standing right next to each other at the bar, waiting for their drinks.
They also rarely dance like this. Grinding is just something they do with their girlfriends to post on Instagram. The only time you'll really see that post-college is if they're already dating/f***ing.
As for whether it's the same for me, yes and no.
I'm a good-looking guy to the point where I've had a modeling contract with a New York agency (didn't get any work, so take that how you will), I'm 6ft tall, and around 215-220lbs. I get looks, sure, and when they're from attractive women, I know how to capitalize on that and approach. However, I'm not outstanding...
I'm not super tall. I'm not well-known. I'm not famous or high status. I'm certainly not rich. I've seen what that looks like...I had a friend who's 6ft 7inches, good-looking, and an overall great guy. I'd go out with him and catch women staring at him in awe - I rarely get that treatment. His shortcoming is that he has to be plastered to drum up the courage to talk to women. My success comes from my ability to do what he can't.