Selena Gomez and Demi Lovato are BFFs in real life — but in their upcoming Disney Channel movie "Princess Protection Program," they don't start out that way.

Gomez plays a tomboy whose family takes in Lovato's princess after a dictator invades her country. Gomez, who turns 17 this summer along with Lovato, says they bicker at first but eventually "realize that they complement each other."

Gomez says they fit their roles, since Lovato is more princessy.

While filming in Puerto Rico, Gomez says Disney tried to separate the duo at night by putting them in different buildings. But according to Gomez, she lived in Lovato's room "half the time."

"Princess Protection Program" airs June 26.

Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Selena Gomez
PLAY IT NOW: Music Video: Selena Gomez & Demi Lovato - 'One And The Same'
PLAY IT NOW: Access Search Engine: Meet The Stars of Disney's 'Zeke and Luther' (June 11, 2009)

MORE ACCESS ON THESE TOPICS: Demi Lovato - Selena Gomez - Disney - Young Hollywood - Movies

Copyright Access Hollywood

Leave Comments