Explore Movie Vocabulary
Learn English with movies. Discover how much of a movie’s vocabulary you already know and review unfamiliar words before watching.

Chernobyl
Is Chernobyl difficult to watch in English? Explore its vocabulary difficulty, estimated English level, and unfamiliar words before watching.
Unique vocabulary and phrases by level
How difficult is Chernobyl in English?
Chernobyl: 51.2% A1–A2 vocabulary; 22.8% B2, C1, and rare vocabulary. Vocabulary size: 2,196.
Unique vocabulary
- For A2 learners: 36.6% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 22.8% of unique vocabulary is above B1 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B2 learners: 15.3% of unique vocabulary is above B2 or marked rare. Preview recurring words and use English subtitles.
12.2% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
86.3% A1–A2 vocabulary; 6.4% B2, C1, and rare vocabulary; 3.5% Unclassified.
This counts repeated eligible words. Phrases are excluded from this calculation to avoid counting their component words twice.
Subtitle coverage: 5 of 5 episodes; the profile describes only available subtitles.
Recurring words and phrases to preview
- core (C1): 53 occurrences in available subtitles.
Subtitle example:
RBMK reactor cores don't explode. Akimov.
- nuclear (B2): 43 occurrences in available subtitles.
Subtitle example:
Isn't Yuri a plumber? - At the nuclear power plant.
- fuel (B1): 31 occurrences in available subtitles.
Subtitle example:
It's the fuel, for sure.
- pump (C1): 29 occurrences in available subtitles.
Subtitle example:
Get hydrogen out the generators, pump water into the core.
- akimov (rare): 27 occurrences in available subtitles.
Subtitle example:
We know. Akimov, are we cooling the reactor core?
Compare with titles in similar genres
- Band of Brothers: 22.8% B2, C1, and rare vocabulary (0.1 percentage points less than Chernobyl).
- I, Claudius: 31.7% B2, C1, and rare vocabulary (8.9 percentage points more than Chernobyl).
- Breaking Bad: 35.2% B2, C1, and rare vocabulary (12.3 percentage points more than Chernobyl).
These percentages describe vocabulary, not the proportion of dialogue you will understand. CEFR labels are estimates, not official film ratings. Accent, speed, songs, context, and your own vocabulary also affect comprehension. Repeated occurrences may include repeated dialogue or lyrics.
How we estimate vocabulary difficulty · Evidence generated: