Yeah, I'm a pretty big Sci-Fi fan, but I wouldn't know an Alien APC if I saw one.  I don't think it is possible to keep track or to be able to tell the difference between all the vehicles and such unless you are a fan of a specific film.  Things that are close or "inspired by" probably aren't in danger, either, it is the exact or near exact copies that are problems.

Another area that always has me wondering is the Mechs.  I love giant robot stuff and I've seen my share of Anime, but I couldn't tell you if a Robot was a Robotech robot or an original or a robot from a movie like Appleseed.  They run together after awhile.

We have to help our kind marketplace people, we can't expect them to know everything.  That is why I suggested reporting it in my earlier post.  In the end, someone in the market place probably have to look at the mesh and look at the original and decide if it's "too close for comfort."