The Big Nostril (1981)

In contrast to his successful twin brother, Alexandros, who has made a name for himself as a top-notch oil scout at the far ends of Anatolia, the unsuccessful private eye, Thiseas Doxapatris, is struggling to make ends meet. After a lucrative business proposition by a Greek oil tycoon, the two brothers are about to reunite; however, the news of Alexandros' arrival in Athens reaches a die-hard group of environmental activists who are willing to go to great lengths to abduct him. Now, it's up to Thiseas to prove his worth, and save the day before it's too late. Can he rescue the "Big Nostril" from the clutches of the dangerous environmentalists?