The title of the music video-like experience comes from a combination of the album title The Dark Side of the Moon and the film's song "Over the Rainbow."

Pink Floyd band members have repeatedly insisted that the phenomenon is coincidence. In an interview for the 25th anniversary of the album, guitarist/vocalist David Gilmour denied that the album was intentionally written to be synchronized with Oz, saying "Some guy with too much time on his hands had this idea with combining Wizard of Oz with Dark Side of the Moon." Richard Wright "swore on his family" that the band had not intended to do anything of the sort. When asked about the coincidental events between the album and the movie, Nick Mason stated, "I haven't [watched The Wizard of Oz synchronized with Dark Side of the Moon]. But I hope someone else will do it when I'm there. I can never quite be bothered to do it. I can assure you we never worked with the film when we were working on the track. That would be so convoluted a way of making a record." Alan Parsons, who was the engineer on Dark Side of the Moon, said that no one in the band had discussed The Wizard of Oz while they were making the album.

The record company, EMI-Capitol Entertainment Properties, has made no effort to counter the rumor. In the weeks following the mainstream newsmedia reports, EMI-Capitol reported that they were having trouble keeping up with demand for copies of Dark Side of the Moon, as sales had doubled. Bruce Kirkland, chief of EMI-Capitol, said, "It's happening at an organic, grass-roots level, but we're into fueling it.... Why Not? It's not harmful, it's not exploitative, and nobody died. It's just fun. Yeah, let's get into it."