When trying on clothes prior to meeting Frank in NYC, Molly takes off the striped dress and tosses it in the pile on the bed. In the next shot the dress is visible on her arm as she continues to look through clothes hanging in the closet.
When Frank tells his wife, Ann, about Molly, she has a pair of twisted, single hoop earrings on one minute, and the next shot of her, she's wearing double hoops, and the next, shes back to the original earrings.
When Frank is talking to Victor at a construction site, the camera crew is reflected twice in succession in plates of glass that they pass.
When Robert De Niro and Meryl Streep meet in Chinatown, a microphone is clearly visible taped under De Niro's shirt.
During several exterior Metro North run-by's, the film sequences are shown inverted. Trains coming towards the camera should run on the viewers left (as
trains and cars both drive on the right in the US) and the motorman's front window should be on the viewers left, as seen in the sequences shot in Grand Central Terminal.