Goofs

Charlotte's blue eye shadow disappears and reappears as she goes to and returns from the hospital.

When Joe comes to see Charlotte while she is sitting on the rocks after she runs away, her hair is noticeably different. It looks like a wig, but in all the scenes before and after this one, it goes back to how it's been throughout the whole movie.

Although the latter portion of the film takes place in January, we never see any evidence of snow, even though it is set in Massachusetts. Also, the characters don't always seem to dress appropriately for winter there. They dress more as if it were autumn instead.

In one shot of Joe ringing the bell in the bell tower, the tower wobbles slightly. It was a fake building constructed for the film.

The subtitle "1963" is shown as Charlotte watches Soeur Sourire perform "Dominique" on the 5 January 1964 broadcast of "The Ed Sullivan Show".

Mentions of AstroTurf (introduced in 1965) in 1963.

As the groceries are being put away, a Dole can with a 1990s logo is visible in the refrigerator.

In the final scene, Charlotte open a bag of potato chips. In the 60s potato chips were packed in a wax bag with two individual bags inside. The bag Charlotte opened was a modern package with silver lining inside the single bag.

Rachel's mermaid wig and costume for the New Year's Eve party is very circa 1990 and looks nothing like what would have been sold in 1963.

When Charlotte faints in the hallway, you hear her hit the floor but her feet are still moving backwards.

Rachel asks Lou if he can feed Charlotte and Kate since she has to run an errand to Boston. He tells her he can and has a pot roast. When she gets back later, they're having a roasted chicken.