Keys to the Heart
“Off-tune brothers unite!”
Synopsis
An older brother is a washed-up boxer. His younger brother is a genius pianist with physical disability. The brothers make up through their mother who is full of stories of her past.
Credits
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How many hands made this film
The scale of the collaboration
Principal cast & crew: 17
These are the principals we have on file — the full crew ran to the hundreds. Every film this size was made by far more hands than any credits list ever names.
Why a floor?
This is a minimum, not a total. We only count the credits we’ve captured so far, and coverage is uneven — a blockbuster might show a few hundred names while another of the same size shows a couple dozen. The real crews all ran into the thousands. The number here only grows as full credits are enriched — so we frame it as a floor, never a headcount.
Craft leads on file
Edited by Sun Min KimShot by Kim Tae SungScored by Sang Jun HwangDesigned by Tae Hoon Lee
Box Office
2018 · Box office
Grossed $25.4M worldwide
Worldwide gross
$25.4M
US & Canada: $75K — 0% of worldwide · International: $25.3M (100%)
Opening weekend: $10K — 13% of its US run. It had legs — it kept earning long after opening weekend.
Opening week (7-day): $17K — 23% of its US & Canada run.
Peak 2 theaters
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Cast & Crew
17 unique people credited
Top billed cast
Directors
1Writers
1Producers
2Other crew
4Parents Guide
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