They go through with it, planning the whole ordeal before undertaking it in the films final act.

How does a movie cram so many people into it?

Oh, and it spans decades, necessitating the use of continually new characters/actors to show up.

The Dirty Dozen - 1967 - poster

Image via Metro-Goldwyn-Mayer

NEXT:The Best Movie Casts of the ’80s, Ranked

Miximilian Schell in Judgment at Nuremberg

Image via United Artists

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Cast Placeholder Image

Spartacus - 1960

Image via Universal International

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The Dirty Dozen - 1967 (1)

Image via Metro-Goldwyn-Mayer

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Auda Tayi, Lawrence, and Sharif Ali, looking disturbed in ‘Lawrence of Arabia’

Image via Columbia Pictures

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Toshiro Mifune as Kingo Gondo on a phone call, while his fellow cast members listen in, in ‘High and Low’

Image via Toho Company

High and Low 1963 Movie Poster

William Holden, Ernest Borgnine, Ben Johnson, and Warren Oats walk in a line in The Wild Bunch

Image via Warner Bros.

The Wild Bunch 1969 Movie Poster

the magnificent seven characters in line aiming their rifles ahead

Image via United Artists

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Gene Hackman, Warren Beatty, and Faye Dunaway robbing a bank as the characters in Bonnie and Clyde (1967)

Image via Warner Bros. Pictures

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Steve McQueen with a baseball glove in The Great Escape

Image via United Artists

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