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 - chronological order
Directed by: Irwin Allen
Starring: Michael Caine, Richard Widmark, Richard Chamberlain, Katharine Ross
Revealing mistake: When Katharine Ross pronounces the child dead in the hospital, she pulls a blanket over the child. The kid moves and flutters his eyes.
Brad Crane: Are you endowing these bees with human motives? Like saving their fellow bees from captivity, or seeking revenge on Mankind?
General Thalius Slater: I always credit my enemy, no matter what he may be, with equal intelligence.
Trivia: When Felix is bringing flowers over to Maureen, he passes by a movie theatre playing "The Towering Inferno", which was also produced by Irwin Allen.