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

Planet of the Apes
Unique vocabulary and phrases by level
How difficult is Planet of the Apes in English?
Planet of the Apes: 58.4% A1–A2 vocabulary; 18.6% B2, C1, and rare vocabulary. Vocabulary size: 1,268.
Unique vocabulary
- For A2 learners: 30.7% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 18.6% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
- For B2 learners: 12.3% of unique vocabulary is above B2 or marked rare. Preview recurring words and use English subtitles.
10.9% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
87.9% A1–A2 vocabulary; 5.4% B2, C1, and rare vocabulary; 3.1% Unclassified.
This counts repeated eligible words. Phrases are excluded from this calculation to avoid counting their component words twice.
Recurring words and phrases to preview
- planet (B1): 13 occurrences in available subtitles.
Subtitle example:
on an unnamed planet in orbit around a star in the constellation of Orion.
- creature (B1): 11 occurrences in available subtitles.
Subtitle example:
Experimental brain surgery on these creatures is one thing,
- heresy (rare): 11 occurrences in available subtitles.
Subtitle example:
That was before Dr. Zaius and half of the Academy said my idea was heresy.
- evidence (B2): 10 occurrences in available subtitles.
Subtitle example:
The evidence was very meager. - You didn't think so then.
- forbidden (C1): 10 occurrences in available subtitles.
Subtitle example:
No creature can survive in the forbidden zone. I know. I've been there. I've seen it.
Compare with titles in similar genres
- The Fantastic Four First Steps: 18.6% B2, C1, and rare vocabulary (0.0 percentage points less than Planet of the Apes).
- Black Widow: 18.6% B2, C1, and rare vocabulary (0.0 percentage points less than Planet of the Apes).
- Avengers Infinity War: 18.5% B2, C1, and rare vocabulary (0.2 percentage points less than Planet of the Apes).
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: