Wiktionary
a. (context film English) Having the length of a feature film.
Wikipedia
Usage examples of "feature-length".
Disney was producing a live-action remake of its popular 1961 feature-length cartoon, puppy mills across America began breeding dalmatians like rats.
In other words, the engineer-hours that, in the case of Microsoft Word, were devoted to features like mail merge, and the ability to embed feature-length motion pictures in corporate memoranda, were, in the case of emacs, focused with maniacal intensity on the deceptively simple-seeming problem of editing text.
The tape had all the production values of a feature-length porno tape.
Indeed even the prestigious -Playhouse 90- made use of Woolrich, turning -Rendezvous in Black into a feature-length teledrama (broadcast October 25, 1956) starring Franchot Tone, Laraine Day, and Boris Karloff.