What are the 6 different movies black beauty is made into?

I heard Black Beauty was made into 6 different movies. I wanted to know what they were called and where i can watch them online?What are the 6 different movies black beauty is made into?
Black beauty has been adapted into film 4 times.





* Black Beauty (1921/II)-----%26gt;http://www.imdb.com/title/tt0163552/


* Black Beauty (1946)-----%26gt;http://www.imdb.com/title/tt0038361/


* Black Beauty (1971)-----%26gt;http://www.imdb.com/title/tt0066834/


* Black Beauty (1994)-----%26gt;http://www.imdb.com/title/tt0109279/

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