Cosmopolis (DVD)

Cosmopolis

Riding across Manhattan in a stretch limo in order to get a haircut, a 28-year-old billionaire asset manager's day devolves into an odyssey with a cast of characters that start to tear his world apart.

From Wiki: "Billionaire Eric Packer (Pattinson) rides slowly across Manhattan in his limousine that he uses as his office while on his way to his preferred barber, even though there are traffic jams. The traffic jams are caused by a visit of the president of the United States and by the funeral of Eric's favourite musician, whose music he plays in one of his two private elevators. He has recently married. In the car and elsewhere, he has meetings with his wife, who does not want sex with him, to save energy that she needs for her work. Instead, he has sex with other women. In his car, while having a meeting, he has his doctor carry out his daily medical checkup; Eric worries about the doctor's finding that he has an asymmetrical prostate. After devastating (not from Wiki - losses from) currency speculation, he kills his bodyguard and follows a path of further self-destruction, including visiting his potential murderer and deliberately shooting himself in the hand."

And getting desired haircut.