The producers stated, "Lee Seo Won was playing the role of the director in charge of the musical featuring the female lead. He was a supporting role with not much screen time. However, we cannot delete the scenes entirely as it plays a part in the story. We plan to replace him and re-film the scenes."
They added, "'About Time' started filming in February. We have obtained a good amount of footage for broadcast so the re-filming shouldn't harm the broadcast schedule."
'About Time' starring Lee Sung Kyung and Lee Sang Yoon is scheduled to air in end of May.