The movie "Perfect Crown" is based on the Disney+ platform, starring IU and Byun Woo Seok, set in a fantasy universe. In the movie, IU plays Seong Hui Ju - a wealthy young lady who is always dissatisfied because she does not have much power, while Byun Woo Seok plays a prince who has nothing but a title.
On March 10, the crew released the first teaser. On March 18, the second teaser continued to be announced and quickly attracted the attention of the audience.
Although the movie has not yet aired, IU has soon become the focus of controversy. In the second teaser, the past of the character she plays is revealed more, including a period when she was still in high school. In one scene, IU appears in a school uniform and runs through the corridor with actor Noh Sang Hyun - who is also in uniform.

After the clip was shared again on social network X, many viewers thought that letting actors over 30 years old play high school students was unconvincing. IU is currently 32 years old, while Noh Sang Hyun is 35 years old.
However, there are also opinions defending the film. A part of the audience believes that this is not a school movie, so recreating the high school period is just a detail in the storyline, not too big of a problem. Some people even commented that letting adult actors take on these scenes can help limit pressure or risks for young actors.
According to the plan, the movie "Perfect Crown" will officially premiere on April 10.