Vivarium

How difficult is Vivarium in English?

Vivarium: 83.3% A1–A2 vocabulary; 7.5% B2, C1, and rare vocabulary. Vocabulary size: 491.

Unique vocabulary

• For A2 learners: 11.2% of unique vocabulary is above A2 or marked rare. Preview recurring words and use English subtitles.
• For B1 learners: 7.5% of unique vocabulary is above B1 or marked rare. Try a short scene and check your comprehension; the vocabulary offers a relatively accessible starting point.
• For B2 learners: 4.5% 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.

5.5% Unclassified. Unclassified vocabulary has no reliable level assignment.

Vocabulary weighted by word occurrences

95.6% A1–A2 vocabulary; 1.5% B2, C1, and rare vocabulary; 1.9% 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

• disgusting (B2): 4 occurrences in available subtitles.

  Subtitle example: You're fucking disgusting.

• whatever (B1): 4 occurrences in available subtitles.

  English meaning: Anything that is needed or possible; also an informal expression of indifference.

  Subtitle example: what... Whatever it takes, all right? We're... We're gonna get out of here.

• measure (B1): 3 occurrences in available subtitles.

  Subtitle example: Measure me. Measure me, measure me.

• overwhelmed (B1): 3 occurrences in available subtitles.

  Subtitle example: Are you overwhelmed again, Mother?

• suppose (B1): 3 occurrences in available subtitles.

  English meaning: To think something is probably true, or to imagine a possible situation.

  Subtitle example: What am I supposed to do with him?

Compare with titles in similar genres

• Halloween III Season of the Witch: 8.1% B2, C1, and rare vocabulary (0.5 percentage points more than Vivarium).
• Cube: 12.4% B2, C1, and rare vocabulary (4.8 percentage points more than Vivarium).
• The Stepford Wives: 12.5% B2, C1, and rare vocabulary (5.0 percentage points more than Vivarium).

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: 2026-10-13