Writer/director Christopher Nolan has given two of his characters the same name, and that name is unusual enough that it has to be more than just a coincidence. The celebrated filmmaker established his time-manipulating and plot-twist-heavy style with his breakthrough movie, 2000's Memento, but he pulled off the same tricks with his directorial debut, Following. Visually, the movie couldn't be any more different from Nolan's $200 million blockbusters shot on IMAX cameras, as Following had a small budget of $6000 and was shot in black and white. However, narratively, the movie is full of surprises, just like Nolan's best films.
https://screenrant.com/christopher-nolan-cobb-inception-following-name-explained/