The phrase "mistaken view" refers to having a belief or understanding that is incorrect or wrong. It means perceiving something in a way that does not align with reality or truth. Full definition
After all, the critics pointed out, communities of scientists had often held mistaken views, and then changed their collective minds. (history.aip.org)
Given that thematic base, it shouldn't be surprising that even specific story points are duplicated: In both films, the heroes connect with old girlfriends, only to realize that for decades they've been carrying mistaken views of those relationships. (csmonitor.com)
Not only did the Jesuits and Ursulines doubt the «full humanity» of indigenous people, but they were taken aback by their «horrifyingly mistaken views about many things — notable among these, the nature, education and discipline of children.» (religion-online.org)