Is The Phantom Planet (1961) public domain?
The copyright record for this film, written out in full so you can check it.
Public domain in the United States
What is usually said
A low-budget space picture on every public domain list, and one of the ones people are least sure about.
The finding, and the working behind it
Public domain in the United States: no renewal exists. The renewal class returns 85 records on "phantom" and none is this film.
Eighty-five renewal registrations contain "phantom" in the motion picture class. The count is exact, all were read, and none of them is this film.
We searched "phantom planet" first and it returned nothing at all. That result was discarded rather than used, and this is the clearest example on the site of why: a two-word query matching no record cannot distinguish a film that was never renewed from a film the catalog spells differently. "phantom" returns eighty-five entries, which is an answer. Zero is not an answer.
The register, as it stands
- Original release
- 1961, American International Pictures
- Renewal fell due
- 1988 or 1989, the twenty-eighth year
- Renewal found
- none
- Search
- "phantom", renewal class, motion pictures — 85 records, all read
- Checked
- 7 September 2026
- Searched
- 2026-09-07
What this search does and does not cover
The renewal registrations for the film. Music and any underlying material were not searched. Note also that this was an American International release, and AIP titles are the most heavily renewed group in this research — four of them are recorded here as not public domain.
How to check this yourself
Everything above is drawn from public records. None of it requires our word:
- The Catalog of Copyright Entries, the Copyright Office’s printed registration and renewal volumes, scanned and searchable at the Internet Archive and at the Online Books Page. Registration numbers beginning LP or MP are film entries.
- The Copyright Office online records at copyright.gov, which are complete from 1978 and therefore decisive for any renewal that fell due from then on.
- The NFPF Field Guide to Sponsored Films, for the industrial and educational titles, which records copyright status entry by entry.
Where these numbers came from
- Copyright Office public records API, renewal class, motion pictures, query "phantom".
- Method: outreach/PD-VERIFICATION.md; verifier: scripts/pd-verify.ts.
What this does and does not mean
This is a finding about United States copyright, made in good faith from the public record. Copyright terms differ by country, and a film in the public domain here may still be protected elsewhere.
A negative search proves that no record was found, which is not identical to proving that no record exists. The Copyright Office says as much about its own catalogs. Where a search could not be decisive we say so above rather than rounding it up to certainty.
This is a record of research and not legal advice. If you hold a right in this film, or you think we have read the record wrong, write to mike@tapeterritory.com with what we missed and we will correct it here.
Why we did this research
Establishing what may be published is the first step before restoring a film and writing an audio description for it. That is what this site is for, and we do the same work on commission — audio description and captioning, with published rates.