Official checks with unknown runtimes

Created by Ebbywebby.

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For awhile, I've been on a peripheral quest to fill in the "unknown" runtime fields for all official-check films. With some help from others, I believe I've engineered close to 200 runtimes being added (not counting many other runtimes I've added for "unofficial" films). Usually, the process also involved submitting a runtime to IMDB first, so I'm conscientious about wanting to get the length exactly right using a credible Web resource (or hopefully, *more* than one to confirm). I share this list so others can message me if they have knowledge of these remaining films -- films for which I have either conflicting information, thin information or no information at all. Ideally, an officially cited length from some sort of catalog page (for instance, http://www.worldcat.org) seems more definitive than just quoting how long a possibly erratic torrent or YouTube video lasts, but I'll take what I can get.

A few of the earliest shorts are problematic...shorts lasting under a minute seem to defy the update process. I note that three widely seen shorts from the 19th century get sifted to the top if you sort the list by runtime, even though their runtimes are listed as "unknown." Strange.