Marvel Cinematic Universe as it required her to be in green make-up for six months out of every year.
Though the actor did not name the character, it is most likely Gamora, played by Zoe Saldana in "Guardians" and "Avengers" franchise.
"I turned down (a superhero movie) once and they haven't called back since. And it was a big one. I don't regret it because I didn't want to be green for six months out of every year. They tell beautiful stories through superheroes, and my daughter's now really obsessed with superheroes now, and part of me wishes I'd done it, but the other part of me is like I had a life to live' and I don't think I would've been happy," Seyfried told MTV.
"It's so much more fulfilling to be in a scene with another human, doing human things, talking about real life and that's what we did (in 'The Art of Racing in the Rain').