Factual error: In an early scene, the high school science teacher produces a schematic diagram of the two nuclear bomb designs created by the Manhattan Project. He says, "Here are two designs based on plutonium." Actually, only the Fat Man bomb uses plutonium. The other, the Little Boy design, uses uranium.

The Manhattan Project (1986)
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Directed by: Marshall Brickman
Starring: John Lithgow, Christopher Collet, Paul Austin, Richard Council, Robert Schenkkan
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Paul Stephens: I never thought I'd say this to anybody, but I got to go get the atomic bomb out of the car.
Trivia: After the six wires are cut to defuse the weapon, you can see the amount of time left on the clock is 07:16:45, which is the date of the first successful test of the Atomic Bomb.
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Answer: To further elaborate, sodium pentothal, AKA "truth serum" places the subject in a sedated state; the subject is then questioned while under its influence because it is supposedly very difficult (but not impossible) to lie while under its influence.
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