Why hold the shot
Bordwell (#24) lists unglamorous reasons a director might hold a shot: it saves time and money, it lets actors keep their rhythm, it lets you see the dead time between gestures. Romney (#10) says the opposite kind of thing about Lav Diaz: the 485 minutes are the method.
Both can be true. The wait can begin as a practical choice and end up as the subject, and the shot that was cheap to make is the one you can't look away from.
By Raz Rotenberg, made with AI