Cork-born Cillian Murphy became the first Irish-born actor to win a Best Actor Academy Award Sunday night.
He is the second Irish citizen to win the accolade alongside London-born Daniel Day-Lewis, who is both an Irish citizen and resident.
"I am a very proud Irishman standing here tonight," said Murphy.
“We made a film about the man who created the atomic bomb, and for better or worse we’re all living in Oppenheimer’s world, so I would really like to dedicate this to the peacemakers everywhere. Go raibh míle maith agaibh.
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Murphy won for playing the lead role in "Oppenheimer" which collected seven Oscar in all including best director for Christopher Nolan.
"Poor Things," directed by Yorgos Lanthimos and produced by Dublin’s Element Pictures, won four awards including best actress Oscar for Emma Stone.
Said Murphy in his moment of triumph: “Chris Nolan and Emma Thomas – it’s been the wildest, most exhilarating, most creatively satisfying journey you’ve taken me on over the last twenty years. I owe you more than I can say.
“Yvonne McGuinness, my partner in life and art. My two boys, Malachy and Aran, who are sitting up there, I love you so much. I am a very proud Irishman standing here tonight."