Factual error: The globe that April shows to the children is post-1992: Czechoslovakia is divided into the Czech Republic and Slovakia, and Germany is united instead of being divided into Eastern and Western Germany.
Factual error: There is a modern drop ceiling in the 1955 hospital waiting room where Frank is waiting after April's miscarriage.
Factual error: The longneck beer bottles in the 1955 beach scene are incorrect. Longnecks are faster to open, so they were designed for and used in bars. Retail beer bottles (that you would see at the beach) before 1980 or so were shorter so they could fit better in home fridge shelves.
Factual error: When Frank is in the bar/restaurant talking with coworkers, one of them remarks about "the old cubicle." Cubicles were not used in companies until the 1960s. In the 1950s, when the film takes place, companies had rows of desks without any dividers between them.
Factual error: Kate is wearing a watch with a Speidel Twist-O-Flex watch band. These bands were introduced in 1959.
Factual error: The wall phone in Frank and April's 1955 kitchen is an old rotary phone, but actually post 1980. It has a modern flat cord and a modern wire plug. Phones cords in 1955 were round and permanently attached to the handset with no square plug.
Factual error: In one of the scenes showing the children's room, there is a horse model on the dresser behind them. The model is in fact a Breyer "Running Mare" in a charcoal color. This model was not produced until 1961.
