Movie extras and supplementary videos
Movie extras are supplementary resources whose role and relationship to a feature distinguish them from another complete movie version.
An extra supplies material around a feature: an interview, a deleted scene, a making-of programme or another supplementary video. Its role explains why it appears with the movie even though it has its own duration and streams.
| Resource | Relationship to the feature | Useful description |
|---|---|---|
| Deleted scene | Material omitted from a represented cut | Scene name, duration and relevant cut |
| Making-of video | Describes production | Subject, participants and production context |
| Interview | A contribution about the film or its creators | Interviewee and topic |
| Featurette | A short programme about an aspect of the work | Subject rather than only “extra 4” |
| Trailer | Promotes a release | Trailer version and language |
These videos can be playable resources without being alternate full versions of the film. A 6-minute deleted scene does not offer another way to watch the 108-minute feature.
The parent relationship carries meaning
A video called Location tour could accompany almost any movie. Its association with Night Ferry tells the library where it belongs. Its own title tells the viewer what it contains. Borrowing the feature's synopsis would obscure that distinction.
Edition scope can matter. A deleted scene from the theatrical release may already be present in an extended cut. Calling it an “extra for the film” is broadly reasonable, but claiming it is absent from every edition would be wrong. Likewise, a restoration documentary may describe a specific remaster rather than the original production.
Emby's movie naming guide describes recognized supplementary folders and associations. Those conventions express the parent relationship; they do not infer an extra's precise subject from its technical format.
Commentary can be a track
An audio commentary often accompanies the feature's pictures as another audio stream within the movie source. It then belongs to the source's track selection, with timing aligned to that version of the feature.
A separate filmed commentary or interview is a supplementary video. Treating both as the same resource type hides a practical difference: one changes the sound while the film continues, and the other starts another programme.