The “nr rating age” is a movie rating system.
What does nr mean in movies. One of these is “not rated,” a type of consumer rating you might see on films and video games. Not rated means the makers of the film did not present it to the motion picture association of america to be rated. This means that something has not been deemed suitable for any particular age.
Nr stands for not rated. all films are not rated at some point in their history. It is not an indication.