Revealing mistake: When Rose and her boyfriend are making a toast in her apartment we hear a perfect chiming sound. We can see that they're both holding their glasses by the bowl instead of holding them from the stem. Holding a glass this way would never allow a chiming sound.
Continuity mistake: Maggie carries a bag and black plastic "luggage" when getting off the train and making the phone call. But when she walks into grandma's room, the bag is missing.
Visible crew/equipment: At numerous times throughout the film, especially when Simon and Rose talk on the deck about her not being pregnant, the camera and lights can be seen reflected in Simon's glasses.
Continuity mistake: When Maggie is in her bra and thong at Rose's house, and she lies on the bank, Rose puts a blanket over her. In the wide shot, Maggie is all covered, except for her head. In the close up, Maggie's bra is showing. After Maggie has said 'That was a good day' and Rose answered 'Yeah' Rose covers up Maggie's bra again. (00:07:50 - 00:08:20)
Factual error: Maggie magically overcomes her disability in a single session of reading a poem.