Sums & Differences
Sums & Differences
1978, English. Directed by Gary Hill.
The basis of this “sound/image construct,” recorded in real time, are three black-and-white still images: a keyboard, a flute, and an African drum. These motifs are altered through digitalization, solarization, and interframe switching. As they alternate, the images are accompanied acoustically by simple tonal routines of the instruments shown – little sequences of sound on the keyboard, some drum beats, a brief trill of the flute. The solarization effect of the images changes with the sounds. The work intensifies as it progresses, and images and sounds succeed one another ever more rapidly until a melody of the three instruments emerges. The frequency of the video images continues to increase, with the result that the images pulsate ever more quickly until they gradually overlay one another, producing a cinematographic effect through interferences. Parallel to this, the audio frequency of the melody rises until fundamental tones form, lasting several seconds.
- Runtime
- 0h 8m
- Post-credits
- None listed
- Language
- English
- Rated
- Check local
Start now and it ends at ….
Too new to call
Not enough people have rated it yet for a verdict.
Seen it? Give your verdict.
Saved privately on this device.
Where to watch Sums & Differences
Sums & Differences isn’t streaming on any OTT platform in India yet; it released on 1 January 1978.
No streaming listings yet. Search JustWatch.
Cast & crew
Details
- Released
- 1 January 1978
Check ratings elsewhere
News & fan talk
If you liked Sums & Differences

A Movie
1958 · 6.5/10
Popcorn FlickRecommended by TMDB viewers

Koyaanisqatsi
1983 · 7.9/10
Absolute CinemaRecommended by TMDB viewers

Seconds
1966 · 7.4/10
Worth the HypeRecommended by TMDB viewers

Chronos
1985 · 7.5/10
Worth the HypeRecommended by TMDB viewers

Swan Song
2021 · 7.1/10
Worth the HypeRecommended by TMDB viewers

Crimes of the Future
2022 · 6.0/10
Popcorn FlickRecommended by TMDB viewers

Black Mirror
2011 · 7.8/10
Worth the HypeRecommended by TMDB viewers

Black Box
2020 · 6.4/10
Popcorn FlickRecommended by TMDB viewers

One Hour Photo
2002 · 6.7/10
Popcorn FlickRecommended by TMDB viewers

Time Lapse
2014 · 6.5/10
Popcorn FlickRecommended by TMDB viewers
Sums & Differences: quick answers
Is Sums & Differences worth watching?
Sums & Differences doesn’t have enough ratings for a verdict yet.
How long is Sums & Differences?
Sums & Differences runs 8 minutes (0h 8m).
Does Sums & Differences have a post-credits scene?
None is listed for Sums & Differences. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
Sums & Differences parents guide: is it suitable for kids?
No age rating is listed for Sums & Differences yet.
Which OTT platform is Sums & Differences on?
Sums & Differences isn’t streaming on any OTT platform in India yet; it released on 1 January 1978. (Checked 6 November 2026.)
What movies are like Sums & Differences?
If you liked Sums & Differences, try A Movie, Koyaanisqatsi, Seconds.
Who directed Sums & Differences?
Sums & Differences (1978) was directed by Gary Hill.