Three years ago Warner Brothers celebrated the 75th anniversary of DC Comics with Secret Origin, the Story of DC Comics
, a documentary covering the history of the comics company narrated by Ryan Reynolds. On October 25th Warner Brothers is releasing Necessary Evil
, a documentary about the villains of the DC Universe. With the San Diego Comic Con coming this weekend DC Entertainment has released a trailer for the documentary which features a look at the not only the villains from the comics, but from film and television as well.