 The noted violence of "Dr. No", which also included Bond shooting Dent in cold blood, caused producers to make adaptations to get an "A" rating – allowing minors to enter accompanied by an adult – from the British Board of Film Classification.When he is about to have dinner with Dr. No, Bond is amazed to see Goya's "Portrait of the Duke of Wellington".The painting had been stolen from the National Gallery by a 60-year-old amateur thief in London just before filming began.