Peter Landesman: Peter Landesman. Writer: Concussion. Peter Landesman began his filmmaking and TV career after starting as an award-winning painter and novelist, and investigative journalist and war correspondent for the New York Time Magazine, Atlantic Monthly, New Yorker and others. As a journalist, Landesman covered the conflicts in Rwanda, Kosovo and Afghanistan/Pakistan after 9/11; and broke ground-breaking investigations into weapons trafficking; sex trafficking and slavery; drug and refugee trafficking; art and antiquities...