As a fan of online literature, I can't judge or comment on the value of film production or other art forms. However, according to the relevant reports and comments, Chen Yushan, the director of My Girlhood, revealed the inside story of the film's casting change, causing some viewers and critics to express dissatisfaction and criticism towards her actions. For film production, changing roles was indeed a relatively common phenomenon. It could lead to dissatisfaction and losses from actors, directors, screenwriters, and other parties. However, during the production of the film, both parties should have sufficient communication and negotiation on issues such as changing roles to ensure the quality of the film and the interests of all parties. As a popular movie, the production team and actors of " My Girlhood " were respected and paid attention to by people. Therefore, while Director Chen Yushan exposed the inside story, she also had to bear the corresponding social responsibility and public pressure. All in all, the problem of changing actors was a common problem in film production. It required sufficient communication and negotiation between all parties to ensure the quality of the film and the interests of all parties.