Released on a double-bill with "The Space Children (1958)".

The screenplay was written by Thelma Schnee, the maiden name of Thelma Moss, who would go on to become a famous parapsychologist.

The Colossus of New York Blu-ray was released by Olive Films on June 19, 2012.

The Colossus costume was eight feet tall, weighed 160 pounds and was made from burlap, plastic, rubber and fine chicken wire. Inside, there were batteries, cables, air tanks and oxygen tubes.

It took stuntman Ed Wolff (who was 7 foot tall) 40 minutes to climb in and out of his Colossus costume so a special rack was built where he could rest whilst still in costume in between shots.

The film features an unusually restrained piano score by Van Cleave. This was not so much an artistic choice but brought about by a musicians' strike.

The film barely rates a mention in director Eugène Lourié's autobiography, "My Work in Films".

Russian-born production designer Eugène Lourié, who had previously worked with René Clair, only directed four films in his career of which this is the second. The others were The Beast from 20,000 Fathoms (1953), Behemoth the Sea Monster (1959) and Gorgo (1961).

The funeral sequence had to be reshot because actor Ross Martin, who was in the coffin, fell asleep and his snoring drowned out the recorded dialogue.