Korean cinema’s favourite anti-hero is back. Korean-American actor Ma Dong Seok is doing what he does best — flexing his bulging biceps and funny bone in Wonderful Ghost.  The action comedy is a buddy cop film with a twist. A series of unexpected and unfortunate events leads to the unlikely pairing of Tae Jin (Kim Young Kwang) and Jang Su (Ma, who also goes by the English name Don Lee). While…