Once Upon a Time will be released in select IMAX 3D theatres in China only.
In Bai Qian’s first life, she was the disciple of Mo Yuan, the God of War of Nine Heavens. Due to a devastating war, Mo Yuan's soul was destroyed while sealing the Demon Lord Qing Cang. His body was froze in Qing Qiu where Bai Qian lived. Bai tried all sorts of methods to bring him back to life. While in her third life, Bai Qian had an engagement with Ye Hua (Yang Yang), the prince of the Nine Heavens, also the twin brother of Mo Yuan. They never met each other until one day, Ye Hua found Bai Qian look exactly like his dead wife Su Su. Ye Hua began to pursue Bai Qian to figure out her identity, and eventually gained her affections.
With the help of Ye, Bai recovered her memories as Su Su (her second life). Back then, Su unknowingly fell in love with Ye Hua and married him. However due to misunderstandings, she jumped off the Zhu Xian terrace and all her memories were wiped. Bai believed that Ye betrayed her back then and could not forgive him. Jealousy overwhelmed Ye Hua's concubine Su Jin when she realized Ye Hua loved Bai Qian and she framed Bai. When Su Jin’s crime came to light, she was banished to guard Qing Cang. However she released the demon. Ye Hua scarified himself and killed Qing Cang in a battle.
The IMAX release of Once Upon a Time will be digitally re-mastered into the image and sound quality of An IMAX 3D Experience® with proprietary IMAX DMR® (Digital Re-mastering) technology. The crystal-clear images, coupled with IMAX's customized theatre geometry and powerful digital audio, create a unique environment that will make audiences feel as if they are in the movie.