A Disney Princess is a female protagonist in a Disney movie. Two of the most popular Disney Princesses are ARIEL and Mulan. ARIEL is the main character from the 1989 animated film The Little Mermaid, who is a mermaid who dreams of becoming human. Mulan is the main character from the 1998 animated film Mulan, who is a brave young woman who disguises herself as a man to take her father's place in the Chinese army.