The DCEU struggled to take off, and a big part of why it failed likely comes down to one issue that was highlighted by David S. Goyer, the screenwriter for Man of Steel. Now, as the DCU begins to take shape, it's worth looking back at what went right, and what went wrong for the DCEU. Following the incredible success and growth of the MCU between 2008 and 2013, Warner Bros. and DC were anxious to get in on the superhero hype.