I totally agree, a big dick isn't enough but you also don't need a perfect body. This is written in the article DLD posted, too.
There are so many sections in the �naked people movies� industry, if you are very hairy, you can make �naked people movies� for a hairy fetish website, if you are overweight you can also go into some certain section...
If you are really interested, just try it, If you are a nice openminded guy, than I'm sure you will get into the business.
If I had the choice, I would work for bangbros, I like their movies