NEW YORK, NY - FEBRUARY 7: (EXCLUSIVE COVERAGE) (L-R) Adrien Brody and Sienna Miller attend the 2018 amfAR Gala New York at Cipriani Wall Street on February 7, 2018 in New York City. (Photo by Kevin Tachman/amfAR2017/Getty Images)
NEW YORK, NY - FEBRUARY 7: (EXCLUSIVE COVERAGE) (L-R) Adrien Brody and Sienna Miller attend the 2018 amfAR Gala New York at Cipriani Wall Street on February 7, 2018 in New York City. (Photo by Kevin Tachman/amfAR2017/Getty Images)