Originally intended to be a story featured in the TV series "Amazing Stories" (1985). Steven Spielberg liked the idea so much he decided to make it a theatrical release.
The building that housed Hume Cronyn's lunch counter was a unique old building that was the only one on the block. Twenty-five years earlier it was used for the Judy Holliday musical Bells Are Ringing (1960) with the block in the same condition.
The opening montage shows pictures of Frank Riley in a Navy uniform circa World War 2. Later in the movie when his wife pulls out his pocket watch it has a leather fob attached with a gold anchor with a silver "USN" on it, signifying Frank achieved the rank of Chief Petty Officer during his time in the service.