These days, the talented writer/director/actor is in a dark editing bay assembling “Leaves of Grass,” a quirky 2009 drama that features Edward Norton in a dual performance. Nelson told us that during the shooting of “Leaves,” he and Norton sometimes spoke about their recent blockbuster experience, but he still can’t say with confidence that Norton will return following his rumored falling-out with Marvel Studios.

“We talked about [‘Hulk’] a little bit, yeah; we made some jokes about it,” Nelson remembered. “It’s all good, and I really do hope [the sequel] happens, for all sorts of reasons. But yeah, we did, we had a great time on ‘Hulk’ together. I’m eager to do ‘Hulk 2’ if they make it.”