The cast, story,and directing all combine to make this one of the best all time science fiction movies ever made. Seamless entertainment and a hold-your-breath climax will keep you on the edge of you seat until the last moment. A benevolent space man comes to earth to deliver the message,"learn to live together or else..." What can the consequences possibly be? This is a must-see and is suitable for all ages. Don't forget what to say to prevent the annihilation of earth.