Hitchcock responded to the criticism by explaining that the film's moral was that the Allies needed to stop bickering and work together to win the war, and he defended the portrayal of the German character, saying, "I always respect my villain, build him into a redoubtable character that will make my hero or thesis more admirable in defeating him or it." Bankhead backed him up in an interview in which she said that the director "wanted to teach an important lesson. He wanted to say that you can't trust the enemy... in "Lifeboat" you see clearly that you can't trust a Nazi, no matter how nice he seems to be."