Gap between actual story duration and screen time — reel time versus narrative time. Editing compresses, long takes expand, elisions erase minutes.
On set or in the edit suite, you quickly realize: time ticks differently in film than in reality. A scene that lasts three minutes can tell three hours of story — or vice versa, a real minute can become an eternity when you show it in real-time. This is the core tension between narrative time (how long the story takes) and screen time (how long the viewer sits in the cinema). The entire art of filmmaking lies between these two.
Editing is your most important tool for manipulating time. A classic cutting rhythm compresses: a character leaves an apartment, next shot, they are sitting in a car — the journey is erased. No one misses it because the cuts train the viewer's brain to fill in the gaps themselves. This is called omission or ellipsis. In contrast, a long, uncut shot stretches time — a static shot where little happens becomes an emotional burden. Think of waiting-room scenes or a slow camera movement through a room: here, emptiness fills the narrative. This is the opposite of montage compression.
In practice, you need a feel for which scenes can tolerate compression and which need stretching. An action sequence cut is always faster than physical reality — punch, cut, counter-punch, cut. A conversation between two people, on the other hand, can run in real-time or even seem slower if you use long hold shots and cut less. Pacing is created by cutting frequency and shot length, not by the action itself. Some directors consciously work with dead time — intentionally unused seconds to create tension or to show a character in their slowness.
The most important point: film time is a construction. It doesn't follow chronology or physical logic, but the emotional rhythm of the story. This is your freedom as a cinematographer or editor — and at the same time, your responsibility. Use it consciously.