Other mistake: When Amy cuts Mr Collins' neck while they are having sex and Amy is underneath him, not a drop of blood falls on her hair. Before she climbs off the bed, we can see a ring around her neck, above it, no blood, and below it, buckets full of blood.
Gone Girl (2014)
1 other mistake - chronological order
Directed by: David Fincher
Starring: Ben Affleck, Rosamund Pike, Neil Patrick Harris, Missi Pyle
Continuity mistake: Some scenes were shot after Rosamund Pike had gained some weight, following the plot of the book correctly. However, they were edited together very badly, so that the extra pounds (most visible on her face) come and go several times during the montage showing what she did during the first two days of her "kidnapping." Pasty face with puffy cheeks, and sleek face with taut skin over jutting cheekbones switch back and forth in what amounts to a matter of hours in the film's plot.
Amy Dunne: What's the laptop for?
Nick Dunne: Laptopping!
More trivia for Gone GirlMore questions & answers from Gone Girl
Answer: The city may have fluctuating trash days. Or more likely, the July 5th schedule wasn't the regular pick up day due to the July 4th holiday.