Former Superman actor Dean Cain has criticized James Gunn's creative choices in the new Superman film, particularly regarding the superhero's vulnerability in fights and the portrayal of his adoptive parents, Jonathan and Martha Kent. Cain expressed disapproval of Gunn's decision to depict Ma and Pa Kent as "stupid rednecks" and the repeated need to save Superman in the movie. He also mentioned his connection to Gunn's DC Studios partner Peter Safran, expressing disappointment at not being hired by him. Despite his negative opinions, Cain appreciated the inclusion of Krypto in the film, finding it resonant and respectful.
Source: https://www.superherohype.com/news/616242-superman-dean-cain-lois-clark-adventures-james-gunn-dcu