Sylvester Stallone was nearly cast as Ken in the Barbie movie. Inspired by the Mattel dolls, it stars Margot Robbie, Ryan Gosling, America Ferrera, Will Ferrell, and countless other actors who mostly play various versions of Barbie and Ken. As Robbie's Barbie begins to question her place in the world, Gosling's Ken discovers the patriarchy and elects to bring it back to Barbieland, sparking a massive cultural change. The movie was a massive box office success, securing over $1.44 billion over the course of its run.

https://screenrant.com/barbie-movie-sylvester-stallone-ken-cast-response/