Final answer:
In the movie Frozen, the character clarifies that she is not the princess, but rather the sister of the Queen Elsa.
Step-by-step explanation:
The movie that features the character clarifying, "I'm not that princess. No, my sister Elsa is the Queen. I'm just me" is Frozen.
In this movie, the character Anna states this line to clarify that she is not the princess or queen, but rather the sister of Elsa, who is the Queen. This statement shows Anna's humility and highlights the focus on sisterly love in the story.
Other movies like Cinderella, Sleeping Beauty, and Snow White and the Seven Dwarfs do not include this specific line or scenario.