Is The Boy In The Striped Pyjamas A Scary Movie?

Not really if you are an adult.  But it does have a very sad ending.

Very good movie. No violence is shown. Good for children too.

No. Read the plot.
Bruno is an eight-year-old German boy who leads a rather comfortable life in Berlin during the World War II. His father is a high ranking Nazi
officer, but things change when the family has to move due to his
father’s new post. In his innocence, Bruno sees the nearby
concentration camp as a "farm" and wonders why its inhabitants are
always wearing striped pyjamas. Eventually Bruno becomes friends with a
Jewish boy his own age who lives on the other side of the fence.