Revealing mistake: When Bond is telling Zoe Nightshade, "One thing troubles me, how can I be sure you're the genuine article?" Zoe puts her hands on Bond's chest. Her fingers clip into his character model like she's putting her hand inside him.
Continuity mistake: After Zoe is killed, Bond and R are kneeling beside her and there is nothing behind where R is as far as vehicles go. Then moments later, Bond jumps up and goes to get into his BMW and suddenly it's right behind R. Also, the shipping containers in the background change colours. The position of Zoe's legs also changes slightly.
Trivia: The character of Nigel Bloch is actually the character model of Renard textured over a little and retooled. An asset left over from when the game was originally intended to be the fourth version of The World is Not Enough game, and several similar assets were reused for different purposes.