When Brad Pitt signed on in August to star in director David Leitch's upcoming action thriller Bullet Train, it gave Yuma Terada and Ryosuke Saegusa, co-founders of startup Japanese rights management firm CTB Inc, a burst of high-profile visibility for their unconventional business model. Produced by Sony, Bullet Train will be a big-budget adaptation of Japanese author Kotaro Isaka's novel Maria Beetle.