- Banksy: Warhol repeated iconic images until they became meaningless, but there was still something iconic about them. Thierry really makes them meaningless.
- Lazarides, Steve: I think the joke is on... I don't know who the joke's on - really. I don't even know if there is a joke.
- Banksy: Uhmmm... You know... it was at that point that I realized that maybe Thierry wasn't actually a film maker, and he was maybe just someone with mental problems who happened to have a camera.
- Banksy: Most artists take years to develop their style, Thierry seemed to miss out on all those bits.
- Thierry Guetta: [talking about meeting Banksy for the first time] It was magic that this person let me film, you know? I felt like I had the piece that will finish the puzzle. It was like getting something in the daylight that... what you see in the nightlight. He was even more than I expected; he was, like, just incredible; he was cool, he was... he was human, he was... he was... he was... he is, you know, he's really like a... what he represents, you know? He's really like a... I think he's really like a... I really liked him!
- Banksy: Yeah, I was faced with that terrible thing, when somebody shows you their work and everything about it is shit... so... you don't really know where to start.
- Thierry Guetta: That's why I call myself Mr. Brainwash. It's because everything that I do... somewhere... it brainwash your face!