Explore Movie Vocabulary

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

Source Code

Name: Source Code
Genre: Action, Drama, Mystery
Rating: 7.5

2011 · Action, Drama, Mystery

★ 7.5IMDb rating 1,231Vocabulary size

Unique vocabulary and phrases by level

A1 55.24%A2 9.69%B1 11.98%B2 4.93%C1 3.35%Rare 6.34%Unclassified 8.47%

Loading vocabulary controls…

How difficult is Source Code in English?

Source Code: 64.9% A1–A2 vocabulary; 14.6% B2, C1, and rare vocabulary. Vocabulary size: 1,186.

Unique vocabulary

For A2 learners: 26.6% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
For B1 learners: 14.6% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
For B2 learners: 9.7% 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.

8.5% Unclassified. Unclassified vocabulary has no reliable level assignment.

Vocabulary weighted by word occurrences

90.3% A1–A2 vocabulary; 3.7% B2, C1, and rare vocabulary; 2.8% 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

bomb (B2): 17 occurrences in available subtitles.
English meaning: An explosive device.
Subtitle example: Who bombed the train, Captain?
code (C1): 17 occurrences in available subtitles.
Subtitle example: She survived, but only inside the source code.
source (B1): 17 occurrences in available subtitles.
Subtitle example: She survived, but only inside the source code.
mission (B2): 9 occurrences in available subtitles.
Subtitle example: I was on a mission.
approach (B1): 8 occurrences in available subtitles.
Subtitle example: ANNOUNCER: Now approaching Glenbrook Station.

Compare with titles in similar genres

Backdraft: 14.8% B2, C1, and rare vocabulary (0.2 percentage points more than Source Code).
Oldboy: 13.8% B2, C1, and rare vocabulary (0.8 percentage points less than Source Code).
Blade Runner 2049: 15.4% B2, C1, and rare vocabulary (0.8 percentage points more than Source Code).

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