I've watched the Lion King and it didn't cross my mind that a character on there is named Nala. I hear it's also a popular name for dogs, but I've never came across a dog with this name. I think Nala is perfectly fine to use.
I love the name Nala and I plan on using it for my unborn child if it's a girl. I don't think of the "Lion King" when I hear this name, I think of a strong independent woman.
Halle Berry's daughter is named Nala. I think it's a very cute name, but I'd always associate the name with the lion king and I like a name to stand on it's own.
I know an Egyptian woman named Nah'la. I don't know what it means or if it's a feminine version of this but I thought I'd share it anyway since it is kind of similar to Nala.
The only time I ever heard of this name was from Simba's friend Nala from Lion King. When I hear or see it; I associate it with the lion cub. I wouldn't say it's pretty, it's interesting and unique. Though I couldn't name a kid this. Nothing against it; again I associate it with a lion.
Nala is the name of Simba's wife, but when the creators chose it, they intended it to be a made-up name that didn't mean anything. It just sounded pretty. The Sanskrit name is completely unrelated.
(Already partially covered in name info) Nala (Sanskrit: नल) is a character in Hindu mythology. He was the husband of Damayanti and their story is told in the Mahabharata. Nala was known for his skill with horses and culinary expertise. His main weakness was gambling. He was possessed by the demon Kali.Another famous but most likely completely unrelated to the former bearer is Simba's best friend (and future wife) from "The Lion King," which is significant given it holds the top spot for highest theater average gross in history. (http://www.boxofficemojo.com/movies/?id=lionking.htm)