Vin Diesel didn't get paid for The Fast and The Furious: Tokyo Drift. But what he did get is awesome!

Vin Diesel doesn't just play Riddick, the intergalactic ex-con who can see in the dark, he owns the role—literally. And thanks to some shrewd maneuvers from the muscle-bound star, he has kept the franchise alive.

Diesel and Riddick writer-director David Twohy have overcome obstacles, but the key move came in 2006, when Universal asked Diesel to make a cameo in The Fast and the Furious: Tokyo Drift.

Looking to recharge the series, the studio wanted to use his brief return in Tokyo Drift to signal he would be back center stage in a fourth movie. Diesel agreed, but instead of an acting fee, he demanded the studio give him and his One Race production company rights to the Riddick character.

(Source)