Wright quit the project citing creative differences with Marvel's team. His departure was followed by rumours that Adam McKay would helm the project but McKay is only contributing to the script.
The film, slated to hit theatres on July 17, 2015, stars Paul Rudd and Michael Douglas. Marvel announced Reed's hiring on its official website.
The film's story revolves around a con-man who has the astonishing ability to shrink in scale but increase in strength. Douglas plays Rudd's mentor Hank Pym.