There's been a lot of controversy over Warner Bros.' decision to keep their film and TV DC Comics adaptations separate, and as disappointing as it may be to some that Stephen Amell's Green Arrow won't show up in Justice League, it's something which also has its advantages in terms of the creative freedom the driving forces behind these projects have.Regardless, Kevin Smith revealed on his Fat Man on Batman podcast (via CBR ) that he agrees with fans who believe that Grant Gustin is worthy of playing The Flash on the big screen, indicating in the process that his version of the Scarlet Speedster could very well meet up with Ezra Miller's.Smith said of the recent DC Films Presents: Dawn of the Justice League special.While nothing is confirmed at this stage, the filmmaker went on to accurately point out the advantages of a crossover:If this happens, it's probably a very long way off, but would you like to see these worlds collide in some sort of epic crossover somewhere down the line?