Passage: Nolan made his directorial debut with Following (1998). His second feature, Memento (2000), was highly acclaimed, and in 2017 selected for preservation in the United States National Film Registry. He made the transition from independent to studio filmmaking with Insomnia (2002), and found further critical and commercial success with The Dark Knight Trilogy (2005–2012), The Prestige (2006), Inception (2010), Interstellar (2014), and Dunkirk (2017). Nolan's films are typically rooted in epistemological and metaphysical themes, exploring human morality, the construction of time, and the malleable nature of memory and personal identity. His body of work is permeated by materialistic perspectives, nonlinear storytelling, practical special effects, innovative soundscapes, large-format film photography, and analogous relationships between visual language and narrative elements. Nolan has co-written several of his films with his brother Jonathan, and runs the production company Syncopy Inc. with his wife Emma Thomas.

Question: Who is the co-writer of most of Nolan's films?
his brother Jonathan