Inspired by the plight of Catholic Cardinal Josef Mindszenty behind the Iron Curtain  already the subject of a worthwhile low-budget Hollywood film, GUILTY OF TREASON (1950; see above)  this prestigious British production (based on a Bridget Boland play, who adapts her own work for the screen) boasts two powerhouse performances by Alec Guinness (as the proud Prince of the Church) and Jack Hawkins (as the wily Interrogator). Their interaction is a beauty to behold and one cannot help but be reminded how these formidable actors had already worked together in, curiously enough, MALTA STORY (1953) and, of course, would go on to do so again under David Lean's Oscar-winning direction in THE BRIDGE ON THE RIVER KWAI (1957) and LAWRENCE OF ARABIA (1962). Although much of the running time is devoted to their rigorous one-on-one sessions (enough for it to be deemed a two-hander), the film allows (at least) another fine actor to shine: Wilfred Lawson as Guinness' jailer who grows to respect his prisoner with time. The small cast also includes Kenneth Griffith as Hawkins' eager-to-learn subordinate  incidentally, the latter also appeared in two episodes of Patrick McGoohan's later cult TV series of the same name but which bore no relation to this movie!  and Raymond Huntley as Hawkins' impatient superior. Conversely, the romantic subplot between doubting Communist Ronald Lewis and his Catholic girlfriend Jeanette Sterke seems forced and intrusive  almost like an afterthought (whereas it had been far more effectively handled in the aforementioned Hollywood treatment). But, as I said before, the film's trump card is its gradual depiction of the evolving relationship between the two leads, which really has no equivalent in GUILTY OF TREASON (where Charles Bickford's tormentors were various and generally shrouded in darkness). Although the main characters and the setting remain unnamed throughout (lending it a pretentious air of political allegory also missing from the earlier film), the controversial subject of THE PRISONER got it banned from participating in both the Cannes and Venice Film Festivals  although it did get nominated for 5 BAFTAs and, eventually, won a couple of other international awards.