Chris Rock credits Mel Gibson for his own famous white teeth - because his Lethal Weapon salary helped him pay for them. The funnyman claims he "bought" his perfect smile in 1997 for $15,000 (GBP7,700) after finding he had the cash to fix his teeth. He jokes, "I went to this guy who did Whitney Houston's teeth before the crack. "I got a couple of cheques - Lethal Weapon; `Mel Gibson, thanks for the teeth."