Brad Pitt's job in Bullet Train was amazing and in my opinion it was a really fun movie to watch. It had action and humor without making it too dark or too boring. The movie is mostly set inside a bullet train where the main protagonist is Brad Pitt’s character which is introduced as Ladybug since he's so unlucky. The main bad guy is called the White Death. He hired two people with a briefcase full of money to deliver it to him at the end of the Bullet Train. Another important event in the movie is that a character's child gets pushed off a roof and the dad comes into the train to get revenge on the person who did it, who happens to be on the same train.
Source: IMBD.com