The Good, the Bad, the Weird was a western film that included the actor that won Best Actor for what 2015 film?
The Good, the Bad, the Weird: The Good, the Bad, the Weird () is a 2008 South Korean action western film, directed by Kim Jee-woon, starring Song Kang-ho, Lee Byung-hun, and Jung Woo-sung. Lee Byung-hun:  His critically acclaimed film "Inside Men" (2015) won him the Best Actor prize in three prestigious award ceremonies: 52nd Baeksang Art Awards, 37th Blue Dragon Awards and 53rd Grand Bell Awards—a feat that was unbroken since 2004.
Inside Men