Yeon Woo-jin is after Jeong Yoo-mi in "Tunnel 3D"

Behind the scene cuts of the "Tunnel 3D" poster making were revealed.

The casts of the movie had a good time making the poster as they joked around and played around with one another.

The picture showsJeong Yoo-mismiling brightly andYeon Woo-jincreeping up from behind her. They look very playful and mischievous.

Song Jae-rim,Lee Si-wonandJeong Si-yeonare also in the picture.

The behind cut of the poster making was a thoughtful idea gathered by the cast and crew for the fans.

"Tunnel 3D" is a mystery horror story about a group of friends who get trapped in a tunnel on their way on a trip starringJeong Yoo-mi,Yeon Woo-jin,Song Jae-rim,Jeong Si-yeon,Son Byeong-ho,Lee Si-won,Lee Jae-hee-I,DoheeandWoo Hee. To be released on the 20th this month.