Total screen duration of finished cut — opening title to end card. Determines cinema slot, TV scheduling, festival eligibility; measured excluding credits.
The running length dictates everything – from cinema booking to festival submissions. We're talking about the pure playback duration between the first and last content frame, excluding opening and closing credits. A 98-minute film fits into a different cinema slot than a 127-minute epic, and that's precisely what makes the running length the first measurable criterion your edit must meet.
On set, you first measure your raw material; in the final cut, you determine where the last edited frame sits. What counts: When the title sequence plays – minutes. When the end credit music starts – stop. Some festivals and distributors request precise frame counts for the running length; in that case, you calculate in 25fps (PAL) or 24fps (cinema). A single frame difference can mean your film no longer fits the competition category. This sounds pedantic, but it's reality.
The running length also influences the dramaturgy of the edit. A 90-minute thriller requires different editing rhythms than a 180-minute drama. If you find yourself stuck at 142 minutes and the target was 120, you need to go back – not just cut faster, but condense structurally. This is different from simply cutting out sequences. Some producers set the running length during the pitch; then you work towards it from the outset, not retrospectively.
Practically: Regularly check your running length during the rough cut. Use the timeline markers in your NLE to label edit blocks. This way, you immediately see which sequences are costing minutes and where there's still room. In Premiere or Final Cut Pro, the system directly indicates if you're exceeding the limit. Work with the producer – the running length is not purely a craft decision, but also an economic one. TV slots are fixed, cinema windows are limited. Your running length is a negotiating point.
In international distribution, you need the exact running length for media passports, FSK (German age rating) checks, and distribution. It's often required down to the second. The timing of music, dialogue, and effects – everything depends on it. The running length is not just a metric; it's the core framework of your editing architecture.