A cena em que Marty viaja de Twin Pines Mall em 1985 para a Fazenda Peabody em 1955 sempre teve a intenção de acontecer às 11h15 da manhã (horário de 1985), ou foi uma consequência de Eric Stoltz ser demitido e Michael J? Fox sendo limitado principalmente a filmagens noturnas devido ao seu compromisso com os laços familiares?
Em o 4º rascunho do roteiro , datado de outubro de 1984, o experimento acontece às 1h da manhã:
MARTY: What's up, Doc?
BROWN: One a.m., right, Marty? You're gonna be there, right? Twin Pines Mall.
MARTY: Yeah, right.
Isso é definitivamente de antes do início das filmagens - neste momento, "Suzy" ainda não tinha sido renomeada para "Jennifer". Portanto, foi definitivamente antes de Eric Stoltz ser substituído.
Não encontrei nenhuma indicação do motivo pelo qual o script diz 1:15, mas podemos inferir algumas razões no universo
Fora do universo, Michael J Fox estava livre para trabalhar nas noites
The only reason Michael J. Fox was even able to appear in Back to the Future was that his Family Ties co-star Meredith Baxter was getting ready to give birth to twins. The show’s schedule had to be changed as a result, and Fox was allowed to work part-time on Back to the Future.
During the nine weeks of shooting, the film crew mostly got to work with Fox only at night, as he would spend most of his days in Paramount rehearsing that week’s episode of Family Ties. In the evening, a driver would take him to whatever location Back to the Future was filming at that night. Fox would work on the movie until early in the morning, when he would be taken back home to catch a couple of hours of sleep. Then, another driver would wake him up, make him a coffee and take him to Paramount for another day of rehearsing.
No universo, a novelização ( de acordo com o wiki do BttF ) atribui isso ao Doutor Brown não estar confortável em torno de nenhum tipo de multidões, e querendo evitar quaisquer pessoas que possam estar no shopping por outras razões (como o cinema deixando sair).
"Doc Brown eased the venerable step-van onto the Twin Pines Mall parking lot shortly after midnight. There were more cars than he expected, so he pulled to the far rim of the asphalt area and waited. "Must be a long movie," he said to himself. "
—From Back to the Future by George Gipe (quote, page 41)
"A few minutes later, several dozen people emerged at once from the mall's interior and moved to their cars. A series of starting engines, blinking lights and squealing rubber enlivened the vast treeless plain for a few minutes. Then all was silence again. The faint smell of gasoline fumes hung in the thick air as the tiny specks of light disappeared into the morning darkness. In comparative solitude once again, Brown felt better. People made him feel vaguely insecure."
—From Back to the Future by George Gipe (quote, pages 41 and 42)
É verdade que isso explica por que tarde da noite, mas não às 1:15 da manhã, especificamente.