The director's 2006 movie reboot received mixed reviews upon its release.
"I think that Superman Returns was a bit nostalgic and romantic, and I don't think that was what people were expecting, especially in the summer," Singer told VoicesFromKrypton.com.
"What I had noticed is that there weren't a lot of women lining up to see a comic book movie, but they were going to line up to see The Devil Wears Prada, which may have been something I wanted to address. But when you're making a movie, you're not thinking about that stuff, you're thinking, 'Wow, I want to make a romantic movie that harkens back to the Richard Donner movie that I loved so much.' And that's what I did."
Singer is working as a producer on the latest reboot of the franchise, the Zack Snyder-directed Superman: Man of Steel, as well as the forthcoming X-Men: First Class film.
He has said that he would cast Nicholas Hoult as Superman if he were to revisit the movie.