 On November 2, 2017, the original Robby the Robot prop was offered for auction by Bonhams, and it earned US$5.3 million, including the buyers premium.It set a new record for TCM-Bonhams auctions, surpassing the US$4 million earned for a Maltese Falcon in 2013, making it the most valuable film prop ever sold at auction.In the opening of the film, the narrator mentions that humanity landed on the Moon for the first time in the last decade of the 21st century.