Revealing mistake: When Marisa has her back to her window and you see Mason tossing out his paintings you can see wires attached to the paintings.
Batteries not Included (1987)
1 revealing mistake - chronological order
Directed by: Matthew Robbins
Starring: Jessica Tandy, Hume Cronyn, Elizabeth Pena, Frank McRae
Continuity mistake: UFO finds the toaster plugged into the bottom power outlet then leaves to get the other UFO. When they return 1 minute later the toaster is plugged into the top outlet. (00:23:25 - 00:24:25)
Faye Riley: Frank! It's the love boat to Cuba! Shuffle board and pineapples filled with rum. Know what they do? They put little paper umbrellas sticking out the top so that when it rains, it don't thin out the liquor.
Trivia: This movie was originally supposed to be part of the TV series "Amazing Stories" but Steven Spielberg like the story so much that he decided to make it a full length film.
Answer: There is a newspaper article and it says that Bobby died when he was 18.