sentences:  The Katherine Grant character is based on Margaret Bourke-White, "Life" magazine's first female photojournalist, whose stylized photos of industrial subjects were featured in "Life"'s premiere issue, initiating a new era of photojournalism.Oscar Levant was originally cast for the role of Roger, but when filming was delayed he was forced to withdraw due to other commitments.Rita Hayworth was originally cast as Katherine, but also had to withdraw when production was delayed by eighteen months.