By Solarina Ho TORONTO Wed Sep 17, 2014 9:29am EDT (Reuters) – It has been more than 25 years since a young Ethan Hawke stepped on his desk to salute his teacher, portrayed by Robin Williams, in “Dead Poets Society.” Hawke, 43, has taken on some 50 roles since and this year received his third Oscar nod for best adapted screenplay for “Before Midnight,” shared with Richard Linklater and Julie Delpy. His 12-year “Boyhood” project […]