Charlie Chaplin's 35th Film Released Dec. 07 1914. This is his last film for Keystone Studios as well. http://www.imdb.com/title/tt0004102/ Charlie Chaplin In The Internet Archive http://www.archive.org/details/CC_1914_02_02_MakingALiving http://www.archive.org/details/CC_1914_02_07_KidsAutoRaceAtVenice http://www.archive.org/details/CC_1914_02_09_MabelsStrangePredicament http://www.archive.org/details/CC_1914_02_28_BetweenShowers http://www.archive.org/details/CC_1914_03_02_FilmJohnny http://www.archive.org/details/CC_1914_03_16_HisFavoritePasttime http://www.archive.org/details/CC_1914_03_26
You can stream Charlie Chaplin's "His Prehistoric Past" (1914) free and legally on OldReel, via the Internet Archive.
Yes — it is in the public domain and can be watched and shared freely.