So it wasn't out of a love for '70s disco.
Joel Silver has a love affair with Earth, Wind & Fire. Since he was a teenager, he's loved the band. When I asked him why he loved them, he said, "If you see them live, they put on these costumes, they look like wings, and they would dance and they would have trombones and backup singers, and people would spin and dance, and it was the greatest live show. Amazing." Then he said, "You know what? I can get Earth, Wind & Fire, and we'll just re-create the band with actors." At the first screening, Earth, Wind, and Fire starts singing, and the audience claps, which surprised me, but it's great.
You were mostly dormant between 2005's Kiss Kiss Bang Bang and 2013's Iron Man III. Were you trying to get Nice Guys made?
I was trying to do this, and it didn't work. I was trying to put together something called The Cold Warrior, with Mel Gibson. That fell through for various reasons, which are probably not best to go into. I was really looking forward to seeing Mel play this spy in The Cold Warrior. Just never happened. There were a couple of things that just sort of fell through. I also got sober. For a year or so, that was more important than anything, was just getting on to some kind of spiritual path.