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 Secret Life of Pets
Unique vocabulary and phrases by level
How difficult is The Secret Life of Pets in English?
The Secret Life of Pets: 65.9% A1–A2 vocabulary; 15.5% B2, C1, and rare vocabulary. Vocabulary size: 1,145.
Unique vocabulary
- For A2 learners: 24.3% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 15.5% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
- For B2 learners: 12.4% of unique vocabulary is above B2 or marked rare. Preview recurring words and use English subtitles.
9.7% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
89.2% A1–A2 vocabulary; 5.7% B2, C1, and rare vocabulary; 2.5% 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
- viper (B1): 12 occurrences in available subtitles.
Subtitle example:
Summon the Viper!
- buddy (B1): 11 occurrences in available subtitles.
English meaning: An informal word for a friend or companion.
Subtitle example:
Buddy! There you are.
- playing (B1): 10 occurrences in available subtitles.
English meaning: Taking part in a game, performing music, or acting a role, depending on context.
Subtitle example:
MAN: You be a good boy, Leonard. (CLASSICAL MUSIC PLAYING)
- bunny (B2): 8 occurrences in available subtitles.
Subtitle example:
But then bunny tricks went out of style.
- screeching (rare): 8 occurrences in available subtitles.
Subtitle example:
(TIRES SCREECHING)
Compare with titles in similar genres
- Harold and the Purple Crayon: 15.5% B2, C1, and rare vocabulary (0.0 percentage points more than The Secret Life of Pets).
- Sherlock Gnomes: 15.4% B2, C1, and rare vocabulary (0.1 percentage points less than The Secret Life of Pets).
- The Swan Princess: 15.3% B2, C1, and rare vocabulary (0.1 percentage points less than The Secret Life of Pets).
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: