The "Baby Driver" director had been hired to write and direct the Marvel Studios movie - which starred Michael Douglas and Paul Rudd - before it was decided someone else would write the script.
Wright said he became less emotionally invested as a result, though it was still a wrench to leave the blockbuster.
Speaking on Variety's 'Playback' podcast, the director - whose 2014 departure from the project was attributed to "creative differences" - said, "I think the most diplomatic answer is I wanted to make a Marvel movie but I don't think they really wanted to make an Edgar Wright movie.
"Suddenly becoming a director-for-hire on it, you're sort of less emotionally invested and you start to wonder why you're there, really.
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