Korean Film Holdback Analysis: Maximizing Revenue Across Distribution Windows

The full report (KOFIC Research 2025-14) is available for download from the Korean Film Council website.

Research Background

The theatrical window — the holdback period between a film’s theatrical release and its availability on subsequent platforms (IPTV, OTT) — has been a cornerstone of film distribution strategy. In Korea, a conventional “6-month rule” for SVOD release has been applied by industry practice, but its empirical basis has never been systematically tested.

Since the COVID-19 pandemic accelerated OTT adoption (from 66.3% in 2021 to 79% in 2024), the tension between theatrical exhibition and digital distribution has intensified. This KOFIC-commissioned study provides the first comprehensive empirical analysis of holdback’s actual impact on Korean film revenue.

Data and Scope

Category	Detail
Analysis Period	2021-2024 (post-OTT mainstream era)
Films Analyzed	395 (Korean 246, Foreign 149)
SVOD Holdback Data	239 films
IPTV Distribution Data	381 films
OTT Performance	109-111 films (FlixPatrol)
Audience Survey	500 respondents (ages 14-59, Nov 2025)
Expert Interviews	Producers, distributors, exhibitors, OTT platforms (Dec 2025)

Key Quantitative Results

1. Holdback Does Not Protect Box Office Revenue

Random Forest feature importance analysis reveals that film quality accounts for 93% of box office variation, while holdback period contributes less than 3%. PSM analysis comparing films with holdback above and below 90 days shows no statistically significant causal effect:

Metric	Value
ATE (Average Treatment Effect)	+25,621 KRW
p-value	0.912
95% Confidence Interval	Includes zero
Holdback feature importance	< 3%
Film quality importance	93%

2. Audience Decay: The 95% Exhaustion Point

Using exponential decay modeling, the study finds that potential theatrical audiences are exhausted rapidly:

Film Scale	95% Exhaustion (days)	Optimal Holdback
Blockbuster (>1M admissions)	30	90-120 days
Large (500K-1M)	22	60-90 days
Medium (100K-500K)	22	45-90 days
Small (<100K)	22	30-60 days

The median 95% exhaustion point is 22 days, meaning half of all films lose 95% of their potential audience within just three weeks.

3. The 6-Month Rule Has No Basis

• 83.1% of Korean films already transition to SVOD within 6 months
• Median Korean film SVOD holdback: 105 days (3.5 months)
• Median foreign film SVOD holdback: 181 days (6 months)
• At 180 days, residual audience value: approximately 0%
• RDD Stale Fruit Effect test at 180 days: t=1.15, p=0.253 (no structural break)

4. OTT and Theaters Are Complements, Not Substitutes

Metric	Theater-only	OTT Users
Annual theater visits	1.43	2.13 (+0.70)
Reason for skipping theater (OTT)	-	Only 6.2%
Spending ratio	25.5%	74.5%

OTT heavy users visit theaters more often, not less. Only 6.2% of audiences reported skipping theatrical viewing because of OTT availability.

5. IPTV-SVOD Dynamics

Platform	Median Holdback	Conversion Rate (0-30 days)
IPTV	35 days (~5 weeks)	27.6%
SVOD	105 days (~3.5 months)	6.6% (at 120+ days)

IPTV releases approximately 70 days before SVOD, creating a measurable conversion rate decline of 4.2x for later SVOD releases.

Stakeholder Analysis

Using Mitchell et al.’s (1997) Stakeholder Salience Model, the study maps industry players by Power, Legitimacy, and Urgency:

Stakeholder	Type	Holdback Preference
Theaters (CGV, Lotte, Megabox)	Definitive	Longer holdback
OTT Platforms (Netflix, Tving, Wavve)	Dominant	Shorter holdback
Producers/Distributors	Dependent	Flexible holdback
Audiences	Discretionary	Shorter holdback

A critical structural factor: Korea’s top 3 vertically integrated conglomerates (CJ, Lotte, etc.) control 86.1% of distribution and 95.3% of theatrical screens, creating complex internal conflicts between their theater and OTT divisions.

International Comparison

Country	Theater-to-TVOD	Theater-to-SVOD	Mechanism
France	4 months	15-17 months	Statutory regulation
Italy	-	90 days	Public funding condition
USA	-	45 days	Industry agreement (NATO)
Germany	4 months (VOD)	12 months	FFG statutory
Japan	-	6-12 months	Industry convention
India	-	8 weeks (56 days)	Exhibitor pressure
Korea	IPTV ~35 days	SVOD ~105 days	Industry convention

Survey Highlights (n=500)

• 85.2% use OTT platforms (highest among ages 30-39 at 91%)
• 82% complete theatrical viewing within 90 days of release
• Top reasons for theater preference: immersive screen experience (67.6%), social experience (42.2%)
• 69.6% consider current theatrical holdback appropriate
• 61.8% consider current OTT holdback too long
• If holdback shortened for 100K+ audience films: 68.2% probability of 10% attendance decline, but only 3.2% probability of 50% decline
• 75.2% of stakeholders believe industry consensus is achievable

Game Theory Perspective

The study frames the holdback dilemma as a Prisoner’s Dilemma: individual producers benefit from shortening holdback, but collective shortening could erode theatrical revenue. However, the empirical evidence suggests the feared cannibalization is minimal (only 6.2% substitution effect), making the dilemma less severe than assumed.

The dominant strategy for individual players is to shorten holdback, creating a Nash Equilibrium that trends toward shorter windows. The study argues this equilibrium is not necessarily destructive, given the complementary relationship between theaters and OTT.

Policy Implications

1. The 6-month convention should be replaced with evidence-based flexible windows (45-105 days)
2. Differentiation by film scale is more rational than a uniform holdback
3. Theater and OTT are complements: policy should maximize total ecosystem revenue, not protect one channel
4. Industry consensus mechanisms are needed, with 75.2% of stakeholders open to agreement
5. IPTV timing coordination matters: the 70-day gap between IPTV and SVOD creates measurable value erosion

Limitations

• Data covers 2021-2024, still influenced by post-COVID recovery patterns
• OTT revenue data remains proprietary and largely inaccessible
• PSM cannot fully control for unobserved confounders
• The distinction between “audiences who chose not to watch” and “audiences who watched elsewhere” requires further investigation
• Only 4 years of post-OTT mainstream data; longer time series would strengthen causal claims