Tesla

Ethan Hawke is the fourth actor to have portrayed Nikola Tesla in a feature film after David Bowie in The Prestige (2006), Nicholas Hoult in The Current War (2017), and Petar Bozovic in The Secret of Nikola Tesla (1980).

The narrator claims "George Westinghouse was sixteen when he enlisted in the Civil War, served in the Navy on the northern side, and was promoted to Corporal." This is incorrect. In 1861 at the age of fifteen, Westinghouse enlisted in the New York National Guard (a land unit) but was later called home by his parents. In 1863 he re-enlisted in the 16th New York Cavalry (another land unit) where he attained the rank of Corporal. In 1864 he joined the Navy, serving on the USS Muscoota as Acting Third Assistant Engineer. While "Ship's Corporal" was a position (not a rank) in the Union Navy, Westinghouse never served in that position.