First Experimental Color Films

Lumière Brothers - The Serpentine Dance (c.1899) :

http://www.youtube.com/watch?v=UkT54BetFBI

Probably by William Norman Lascelles Davidson and Benjamin Jumeaux (c. 1902) :

http://www.youtube.com/watch?v=LcIvm0YW_6A

Flowers (1912) :

http://www.youtube.com/watch?v=JDYwfSwZyjY

Thomas Edison - Anna Belle Serpentine Dance:

http://www.youtube.com/watch?v=p94yQ8cvTHg