Eisley will play young Maleficent in the opening act, which establishes the villainous queen's role in her kingdom's hierarchy, reported Variety.
She is set to begin filming in June.
Eisley will be joined by Elle Fanning as princess Aurora, Sharlto Copley as Stefan, Kenneth Cranham as the King, Sam Riley as Maleficent's right-hand man, Miranda Richardson as her regal aunt, and Imelda Staunton as Aurora's pixie.
"Maleficent" will be directed by Robert Stromberg with Linda Woolverton penning the script based on the classic Charles Perrault fairytale.
Walt Disney Pictures has planned to release the fantasy movie in the US on March 14, 2014.
