Goofs

At the beginning of the movie, Mary seems to have recently lost her two front teeth. Although the story clearly covers several months (court battles, changes of school...), the poor girl's new teeth never grow in, and at the end of the movie she is just as toothless as at the beginning.

When changing camera angles at the Psychologist's office, 2 of the blocks on the table disappear.

Near the end of the movie, when Frank and Roberta come to the foster parents' house, they both go into the guest house, where Mary is with Evelyn and two tutors. Yet when Frank takes her back to the guest house to confront Evelyn, Mary is happily surprised to see Roberta.

Mary is placed with a foster home seemingly so that a neutral party can take care of her until the custody case is resolved. If Frank's visitation is legally allowed, then the foster parents would be in violation by preventing him from seeing Mary regardless of Mary's feelings (e.g., Mary can refuse to interact with him, but he must be allowed to see her, possibly in a supervised location although this isn't discussed). In addition, allowing Evelyn to move in to their guest house would also be in violation of the court order as it obviously is biased toward her. In most counties, the foster parents would be in danger of losing their license by these two actions.

Mary is wearing a Girl Scout uniform, it has a patch of golden wings on the upper left side of her Brownie vest. This patch, called the Brownie wings, is received when a Girl Scout is promoted from Brownies to Juniors. It would only be worn by Juniors or higher level Girl Scouts.

The State of Florida does not allow live animal pets in public schools for Show-and-Tell.

If Evelyn Adler is capable of defending a completed proof for Navier-Stokes, she would have easily recognized the problems with the problem that Doctor Shankland placed on the board for Mary to solve.

That's what it looked like, but it later turned out Evelyn did recognize those problems, yet as happens with children Mary assumed it was all her fault that her grandmother was angry, when really it was Shankland.

In the German version the product of 57 and 135 was mistranslated into 7659. This is no excuse for the translators but in German the unit position is spoken before the ten-digit. So seven thousand six hundred fifty nine was translated in that order.

At 10:00, Frank is supposed to be tightening screws on a motor boat engine. When he moves his hand, he has been twisting the screwdriver above a solid plastic cowling, which has no screw holes.

Near 1 hour and 25 minutes when Mary (Mckenna Grace) and Frank (Chris Evans) hug while she cries, Frank's shirt is clearly inside out and stays as such for the whole scene. He's wearing a size small and the seams of the shirt are very clearly out.

When Mary looks at Grandmother's photo album, there is a photo of a college gateway. Grandmother responds to Mary's question "where is that?", stating "Cambridge". In fact it is the gateway to Christ Church, Oxford University, with Mercury, the statue in central fountain, clearly visible in the background.