Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very intense and provocative

Your milage may vary; but I found this movie white-knuckle intense and extremely provocative. There is little danger of giving away the plot; it is not particularly complex. Three stupid, arrogant American teenagers tempt fate by crossing an unguarded gate from Finland to the former USSR, which at the time was very much the USSR and a Very Bad Place for Americans. They make photographs of themselves on the wrong side of the gate. So far so good, but then they get lost and go the wrong way right into the hands of the Russians who mistake them for spies. Some interesting subplots are also happening that keep things moving, that I'll keep a secret for ya. I can promise you one thing: If you are American, after seeing this, you'll salute the flag, think real hard before traveling overseas and I'll bet you never photograph yourself on the wrong side of an international border!