AllMovie

This oddly technical drama about three test pilots for the X-15 devotes a great deal of time to scientific explanations and militarese, leaving slightly less time to examine the personal lives and motivations of the three pilots. The head honcho among the pilots is Lt. Col. Lee Brandon (Charles Bronson in a good performance), and Mary Tyler Moore makes her first feature-length film appearance as one of the Air Force wives who are in the background of their husbands' careers. Narrated by James Stewart, this drama was released just when the X-15 aircraft was breaking flight records.