It says "Production Company: Columbia Pictures," but Warner Brothers is doing the film.
Well one mystery solved - I just noticed on IMDb that Columbia Pictures as well as Relativity Media and Village Roadshow Pictures have been added to the list of production companies for the film (joining DC's estate entity Dan Curtis Productions, Graham King's GK Films, Depp's Infinitum Nihil, Tim Burton Productions, and Warner Bros. Pictures).
How fascinating that three more production companies have been added. Though it would be even more fascinating to know why. But as with nearly everything about the film, who knows when (or even if) we may ever find out? And at the rate things are going, Bob Cobert may need to add more bars to the opening theme so that it will last long enough to play over all the production company logos that will be on display.