Don't be too concerned about the 'fashions' in adult films. Let's face it, if every guy looked to the studs for a role model they;d never leave the house again!
It is the current fashion in most high-cost porn productions for the ladies, and often the men, to be totally fee of body hair, but as i say, don;t be guided by them. You should go with what you feel comfortable with - it's your body after all.
If you want the 'nude' look, I'd get yourself down to a slon and have it done profeesionally - they can always see and reach the bits you can't. I have a 'number one' haircut at the barbers, and yes i could do it myself with clippers, but he always goes over and finds little od bits and pieces which I would miss because I can;t see them. The body area is different, the principle is the same.
Have a think about what you (and your partner if you have one) like, and decide from there. Don't get too hung up on film images, these people do this for a living, not for fun like the rest of us!