Im Soo-jung and Lee Dong-wook seem like a good match in Korean romance flicks – as seen in Lee’s special appearance as Im’s ex in “Search WWW” (2019) -- but their reunion in “Single in Seoul is something of a disappointment. Directed by Park Bum-soo and produced by the team behind “Architecture 101,” a 2012 hit film about young love, this romantic comedy film revolves a...