Dr. No (film) that followed him. Bond, after overpowering Quarrel and his friend Puss Feller, meets Quarrel's passenger, Felix Leiter, a CIA agent on the same mission as Bond. The CIA has traced the radio jamming signal to Jamaica, but has not determined its exact origin. Quarrel, who is assisting Leiter, reveals that he had been guiding Strangways around the nearby islands to collect mineral samples. He also mentions the reclusive Dr. No, the owner of Crab Key, an island rigorously protected against trespassers by an armed security force. In Strangways' house, Bond finds a receipt from Professor R.J. Dent concerning rock samples.
Dr. No (film) designed a highly stylised main title sequence, a theme that has been repeated in the subsequent Eon-produced Bond films. Binder's budget for the title sequence was £2,000 (£ in ). The character James Bond was introduced towards, but not at, the beginning of the film in a "now-famous nightclub sequence featuring Sylvia Trench", to whom he makes his "immortal introduction". The introduction to the character in "Le Cercle at Les Ambassadeurs", an upmarket gambling club, is derived from Bond's introduction in the first novel, "Casino Royale", which Fleming had used because "skill at gambling and knowledge of how to behave