Question: Is this the only Bond film where the title song is being sung by a character during the film?
Question: Bond kills Kananga at the end by placing the bullet with the air pellet in his mouth which causes him to inflate and explode. But Bond had the bullet in his own mouth before when he was concealing it. Why didn't it kill him?
Chosen answer: Bond just stored the bullet in his own mouth to hide it. As he puts it in Kananga's mouth he presumably pulls a pin, or forces Kananga to bite it.
Answer: Bond knew to not bite down. Kananga had no such knowledge. He didn't realise what he was doing, or the effect that it would have on him; hence, boom.
Answer: As far as I can tell, yes. Unless you count "Die Another Day," where the singer of the title song (Madonna) appears in a scene, as well as the song being remixed for the party scene in the ice castle.