Split between two settings, two time periods, and two casts, it’s no wonder that John Madden’s The Debt divides so easily into two levels of quality. There’s one part that I like to call a classy, sexy Cold War spy thriller. There’s another part that I like to call “the ending.” Three Mossad agents share an apartment in East Berlin in 1966; two men and a young woman. The cramped quarters in a hostile land breeds danger and romantic tension.