'No Breathing' still has more to tease with before its upcoming premiere at the end of this month, and so, they've released an additional poster as well as a BTS video! Different from the previous poster which only showed the two male leads, this new one shows more of the cast including Lee Jong Suk, Seo In Guk, Yuri, Kim Jae Young, and Shin Min Chul posing as a happy swimming team. During their photo shoot for the poster, Lee Jong Suk, Seo In Guk, and Yuri get especially close as they goofed around on set. For those of you who haven't been keeping up, 'No Breathing' is a youth sports movie that tells the story of love and rivalry among competitive swimmers. Lee Jong Suk will play the role of Woo Sang, who is an ambitious, young swimmer chasing a big future ahead of him and always striving to be #1. Meanwhile, Seo In Guk will make his film debut as Won Il, a swimming prodigy who tries to avoid swimming until the day he must return to the sport. Check out the BTS video below!