We are a small company developing a product we want to name after a character named "Arwen" from "Lord of the rings".
The product itself has no connection whatsoever with the actual character, we're just "fans" and think it sounds nice. Our second product is a piece of software we want to name after a combat spaceship from the video game called "Star Fox", due the same previous reasons and the fact than they kind of sound alike.
Can we get into trouble because of this? I've been reading there should be no problems if it isn't a "derivative work" and the characters are not main ones so the original work is branded after them (such as "Harry Potter").
Is this true?