Sector 7 is a 2011 Telugu-language Action Adventure film written by Jk Youn and directed by Ji-hoon Kim. Something awaits 2,500 meters under the deep sea off the southern tip of Jeju Island..Directed by Kim Ji-hoon and produced by JK Youn.. Sector 7 features Ji-won Ha in the lead role along with an ensemble cast including Ahn Sung-ki, Ji-ho Oh, Ye-ryeon Cha, Han-wi Lee, Cheol-min Park and Sae-byeok Song. It was released on 3rd November 2011.