As “The King’s Warden” continues to perform strongly at the box office, attention is turning to the content investment strategy of Industrial Bank of Korea (IBK), which financed the film, industry officials said Wednesday. The movie is seen as a potential follow-up hit to the bank’s earlier successful investments in “Extreme Job” and “Exhuma,” both of which surpassed 10 million admissions. According to the Korean Film Council’s ticketing database, “The King’s Warden” topped 6 million viewers on Monday, 20 days after its release. IBK invested 1 billion won ($699,000) in the project. Should admissions exceed 10 million, the lender is expected to extend its streak of profitable film investments. A total of 11 movies backed either directly or indirectly by IBK have crossed the 10-million-viewer threshold, including “The Admiral: Roaring Currents,” “Ode to My Father,” “Assassination,” “Veteran,” “Train to Busan,” “Parasite,” “Extreme Job” and “Exhuma.” IBK has generated notable profits from its film investments, posting a 377 percent retu