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 Fourth Protocol
Unique vocabulary and phrases by level
How difficult is The Fourth Protocol in English?
The Fourth Protocol: 64.0% A1–A2 vocabulary; 17.0% B2, C1, and rare vocabulary. Vocabulary size: 1,252.
Unique vocabulary
- For A2 learners: 28.0% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 17.0% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
- For B2 learners: 11.2% of unique vocabulary is above B2 or marked rare. Preview recurring words and use English subtitles.
7.9% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
87.8% A1–A2 vocabulary; 5.7% B2, C1, and rare vocabulary; 2.7% 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
- general (B1): 22 occurrences in available subtitles.
English meaning: A senior military officer; as an adjective, relating to most people or things.
Subtitle example:
Acting director-general. Bernard Hemmings isn't dead yet.
- bomb (B2): 12 occurrences in available subtitles.
English meaning: An explosive device.
Subtitle example:
That's a detonator for a bomb. - A bomb?
- soviet (B2): 10 occurrences in available subtitles.
Subtitle example:
It's an extract from the debriefing of a recent Soviet defector
- authority (B1): 6 occurrences in available subtitles.
Subtitle example:
You will accept my authority and my authority alone.
- bloody (B2): 6 occurrences in available subtitles.
English meaning: Covered in blood; also an informal intensifier in British English.
Subtitle example:
'Why? Is it Angela?' - No, it's the bloody office.
Compare with titles in similar genres
- London Fields: 17.0% B2, C1, and rare vocabulary (0.0 percentage points more than The Fourth Protocol).
- Slingshot: 17.0% B2, C1, and rare vocabulary (0.0 percentage points more than The Fourth Protocol).
- Emergency: 17.0% B2, C1, and rare vocabulary (0.0 percentage points less than The Fourth Protocol).
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: