The license plate on Steven's car states 15111930. The 15th of November in 1930 is the date of birth of the original writer of the short story, J.G. Ballard.
The butcher seen in the village is called "Ballard Butcher Co.", named after the writer of the original short story, J.G. Ballard.
When Steven looks at the giants cloudy eye you can see cigarette butts in his eyelid.
The Ipswich Collectibles store also appears in the "Pop Squad" episode.