Apparently, Greg Berlanti had been working on a Booster Gold TV series and, while that idea eventually collapsed, it led to a discussion with DC chief Geoff Johns about making a movie.
Now, the producer has told Vulture, that his planned film has “no connective tissue” to the DC universe.
Around about the time that fans were reacting, in various different ways, to Batman v Superman: Dawn of Justice, the news broke that Greg Berlanti, the man who has been building his own little DCEU on television, was working on a film about the time-traveling hero.