No Highway in the Sky [Blu-ray]

Considered a bit eccentric and therefore a tad unreliable, a Royal Aircraft Establishment metallurgist is still respected for his work on the company's newly designed Reindeer, aircraft. Unfortunately, the off-beat scientist has discovered that the new plane has a fatal flaw and that after spending 1,440 hours airborne, the metal in the rear will buckle and the tail will shear off. Now he must somehow convince skeptical executives that a terrible catastrophe will occur if they do not immediately ground all Reindeers.