The upcoming competitive swimming film No Breathing has just released a teaser for one of its swimming scenes. The video features a short interview with both Seo In Guk and Lee Jong Suk, as well as some screen time featuring Lee Jong Suk in the pool. Surprisingly, the I Hear Your Voice actor stated that before the movie, he had no idea how to swim. However, through lots of training, it certainly seems like he's gotten the hang of it!

With the current hype behind both Seo In Guk (and his drama The Master's Sun) and Lee Jong Suk, No Breathing is sure to be a box-office hit. Plus, if nothing else, we'll at least get to see them both shirtless in the pool, right? Be sure to check out the video below!