[3][2] It follows the story of the decades-long friendship of poets Li Bai and Gao Shi amid the Tang dynasty's transition from peak prosperity to the turmoil of the rebellion led by An Lushan, one of Emperor Xuanzong's most favored generals.

The film was produced by Light Chaser Animation Studios, Alibaba Pictures, Tianjin Maoyan Weiying Culture Media, Weibo Corporation, in association with China Film Co., Ltd..

A total of 48 poems by various Tang period poets appeared in the film.

Chang'an was released on 8 July 2023 in mainland China and on August 25 2023 in Hong Kong and Macau.

The movie then opened in the US and Canada on 6 October 2023, distributed by Niu Vision Media.