'Birdman' director credits Keaton's lucky pants for Oscar

Filmmaker Alejandro Gonzalez Inarritu, whose film “Birdman Or The Unexpected Virtue Of Ignorance” clinched four trophies at the 87th Academy Awards on Sunday including Best Picture and Best Director, credited its actor Michael Keaton's “tighty whities” for giving him his best director win.

The 51-year-old joked in his acceptance speech that he had worn part of his leading man's costume from the movie and thinks it helped him to victory, reports mirror.co.uk.

“Tonight I am wearing the real Michael Keaton tighty whities. They are tight, smell like b***s, but they work, I am here. Thank you Michael,” he said.

Inarritu was nominated for the Best Director award alongside Richard Linklater ("Boyhood"), Bennett Miller ("Foxcatcher"), Wes Anderson ("The Grand Budapest Hotel") and Morten Tyldum ("The Imitation Game").