Explore Movie Vocabulary
Learn English with movies. Discover how much of a movie’s vocabulary you already know and review unfamiliar words before watching.
The Blue Planet
Is The Blue Planet 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 The Blue Planet in English?
The Blue Planet: 39.3% A1–A2 vocabulary; 32.6% B2, C1, and rare vocabulary. Vocabulary size: 2,792.
Unique vocabulary
- For A2 learners: 46.4% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 32.6% of unique vocabulary is above B1 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B2 learners: 25.8% of unique vocabulary is above B2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
14.3% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
80.8% A1–A2 vocabulary; 9.1% B2, C1, and rare vocabulary; 4.8% Unclassified.
This counts repeated eligible words. Phrases are excluded from this calculation to avoid counting their component words twice.
Subtitle coverage: 8 of 8 episodes; the profile describes only available subtitles.
Recurring words and phrases to preview
- whale (B2): 71 occurrences in available subtitles.
Subtitle example:
Whale sharks are only visitors.
- predator (C1): 68 occurrences in available subtitles.
Subtitle example:
All this action attracts even larger predators.
- surface (B1): 54 occurrences in available subtitles.
Subtitle example:
Far below the surface, they collide with the island's flanks
- plankton (C1): 47 occurrences in available subtitles.
Subtitle example:
feeding on plankton - tiny floating plants and animals
- current (B1): 46 occurrences in available subtitles.
Subtitle example:
for here, the cold Falklands current from the south
Compare with titles in similar genres
- Our Planet: 33.8% B2, C1, and rare vocabulary (1.2 percentage points more than The Blue Planet).
- Planet Earth II: 30.8% B2, C1, and rare vocabulary (1.8 percentage points less than The Blue Planet).
- Frozen Planet: 29.8% B2, C1, and rare vocabulary (2.7 percentage points less than The Blue Planet).
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: