I just watched CSI: L.V. - that little girl was so good I forgot she was an actress. - her name is Kylie Rogers - the movie that comes to mind is "The Train Agent" and the actor in that one was Raven Goodwin. Both of them were so good that I just thoughtlessly assumed they were kids being kids.
It was the closing CSI scene that I remembered that she was an actress. Kid actors fool me because, unless they are Home Alone, they inhabit their roles.
There is no point to this post just an acknowledgement of some unheralded performers.