Concentration
| MPAA Rating: | NR |
| Genre: | Drama |
| Produced By: | Yong-Deok Kim |
| Directed By: | In-Hyeon Choi |
| Written By: | Eun-Seong Lee |
| Cast: | Woo-Ri Han, Kyeong-Ju Park, Shin-Jae Kim, Chang-Suk Kim, Byeong-Ho Park, Kwang-Nam Yang, Nam-Hyeon Choi, Sun-Jae Lee |
| In Theaters: | Jun 25, 1977 |
| Runtime: | 2 hours 25 minutes |
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