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In page Seven Brides for Seven Brothers:

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On the 2004 DVD commentary, Stanley Donen states that the film was originally shot in two versions, one in CinemaScope and another in normal ratio, because MGM was concerned that not all theaters had the capability to screen it. Despite the fact that it cost more than the widescreen version to make, he says, the other version was never used. However, both versions are available on the 1999 LaserDisc and 2004 DVD releases.[citation needed]