I saw this movie when I was young, so I can't recall too many details. The movie revolves around the relationship between an earthling man and a young alien child. Somehow, they become friends and find the child's home city. The alien child's skin is reptilian and his eyes are yellow/gold in color. The child speaks english, but at times, uses this alien communication(somewhere between a breathy cat's purr and gargling water). Once the two find the boy's home, they encounter much conflict from the boy's people. Sorry for the lack of specifics, but I was just a boy when I watched this film. Any help would be gratly appreciated. The only other thing I could add is that the alien planet is very mars-like or desert.