Night Bus (2007)

Original title: Notturno Bus

Valerio Mastandrea is Franz, a night bus driver on the airport route who owes a lot of money from poker debts. He's stumbled upon by the variously named Leila, a thief who has accidentally become wrapped up in a secretive blackmail deal involving the President. As the film unfolds, a secret war between factions of the Security Services, a series of confusions among the various criminal fraternities whose activites have been touched upon by the deal, and Leila's past all complicate the situation.