Plot hole: When Dr Hubbard is speaking to Dr Andrews at the nuclear power plant, the bees invade the plant, which subsequently explodes. The explosion should have completely eliminated the swarm along with the plant.
The Swarm (1978)
1 plot hole
Directed by: Irwin Allen
Starring: Michael Caine, Richard Widmark, Richard Chamberlain, Katharine Ross
Continuity mistake: The burnout of Houston takes place at nighttime, but when the bees attack an ambulance driver who then crashes into a building, the scene changes briefly to broad daylight.
Brad Crane: We've been fighting a losing battle against the insects for fifteen years, but I never thought I'd see the final face-off in my lifetime. And I never dreamed, that it would turn out to be the bees. They've always been our friend.
Trivia: Irwin Allen used 22 million bees in this movie. This is largest cast of live animals in a feature film.