Their Distance (知らない、ふたり, Shiranai, Futari, lit. "Two Strangers"), is a 2015 Japanese independent film written, edited, and directed by Rikiya Imaizumi, featuring the South Korean boy band NU'EST in their Japanese film debut. Their Distance stars Ren, Fumiko Aoyagi, Minhyun, Hanae Kan, JR, Haruka Kinami, and Tateto Serizawa. The plot is centered around different ideas of love, from generational to cultural, told in a nonlinear narrative switching from various days in April to illustrate the perspectives of all the characters. Part of the film is in spoken Korean, with the film using actors who were fluent in Korean.

The film was first screened at the 28th Tokyo International Film Festival on October 23, 2015, before being released to the general public on January 9, 2016.