While talking with SFX magazine, the 45-year-old actor shared that Whedon just brought to the movie what good directors bring, which is 'good taste'.
He said, "Joss just brought to the movie what good directors bring, which is good taste. A sense of what's gonna work in the story and what isn't. An instinct for realism and for finding the humanity in the characters and the humanity in the conflict, then making it accessible and relevant. I think that's one of the things he did so well with Avengers, frankly."
Adding, "He really defined the tone, and it felt like a lot of the movies after that sort of fell into that tone that he created."
Joss Whedon, who is writing and directing the 'Batgirl' movie for Warner Bros., took over duties on the film when Zack Snyder stepped down from his post as director of 'Justice League' in May, following the death of his daughter, Autumn, in March.
"It was a very tricky dance where you have all these people who can do all these fantastic things that's completely absurd on the face of it, and yet, a good storyteller like Joss brings us in, makes us identify with them, makes them seem real, and makes it interesting. A lot of guys know the comic books, a lot of people have that knowledge base. What Joss really has is talent," noted Affleck.