I haven't seen Zero Hour's irreverent offspring Airplane (1980), so I have to judge this movie on its own merits. In short, it's a white-knuckler all the way. The passenger plane's on a cross-Canada flight when the pilots and some passengers are incapacitated by bad food. Looks like doomsday unless someone among them has flight experience and can step forward. A former WWII pilot, Lieutenant Stryker (Andrews), is conscripted. Trouble is he's still traumatized by combat experience and doubts his piloting abilities, especially with a big jet. Still, there's no one else. Now all the passengers and crew depend upon him to bring the plane down safely in Vancouver amid blinding fog and rain. So, he'll need all the help he can get, especially from the Vancouver flight tower and the commanding Capt. Treleaven (Hayden). But will that be enough.
As some sage once pointed out, there's a close relation between comedy and tragedy. I can see why the producers of Airplane parodied the relentless heavy breathing of this movie in their comedy classic. What with all the interactions between passengers, crew, and tower, there's lots of material to comically exaggerate. Nonetheless, the performances here are effective if mostly unvarying. Andrews gets not a single smile, while Darnell, as Stryker's wife, scowls throughout. In fact, the movie's downside may be that same unrelenting grimness, which is apt for the material but a one-note for audiences.
On the upside is the way some hardier passengers respond to the emergency, showing the skill and heart of a random American public. Then too, if Stryker succeeds, he may overcome his crippling self-doubt stemming from a WWII deadly misjudgment that cost the lives of fellow pilots. Thus Stryker's very much a flawed hero, a good dramatic note. All in all, the movie's a genuine, if unrelieved, thriller that deserves more reshowing than it's gotten. But then Airplane has likely taken whatever thunder Zero had. Nonetheless, this 82-minute suspense can still stand on its own.