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 Sentinel
Unique vocabulary and phrases by level
How difficult is The Sentinel in English?
The Sentinel: 70.9% A1–A2 vocabulary; 13.4% B2, C1, and rare vocabulary. Vocabulary size: 1,096.
Unique vocabulary
- For A2 learners: 22.2% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 13.4% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
- For B2 learners: 8.4% of unique vocabulary is above B2 or marked rare. Try a short scene and check your comprehension; the vocabulary offers a relatively accessible starting point.
6.9% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
93.6% A1–A2 vocabulary; 3.0% B2, C1, and rare vocabulary; 1.4% 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
- suicide (B2): 8 occurrences in available subtitles.
Subtitle example:
and your soul that is doomed for your attempted suicides
- resist (C1): 6 occurrences in available subtitles.
Subtitle example:
Resist.
- attempt (B2): 5 occurrences in available subtitles.
Subtitle example:
after attempted suicide."
- file (B2): 5 occurrences in available subtitles.
Subtitle example:
Where he kept his real files, we don't know.
- action (B1): 4 occurrences in available subtitles.
Subtitle example:
Action. Come on, girls. Shake those heads.
Compare with titles in similar genres
- Species: 13.4% B2, C1, and rare vocabulary (0.0 percentage points more than The Sentinel).
- Spontaneous: 13.3% B2, C1, and rare vocabulary (0.0 percentage points less than The Sentinel).
- Psycho: 13.4% B2, C1, and rare vocabulary (0.0 percentage points more than The Sentinel).
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: