(Cover) - EN Star Style - Selena Gomez's footwear in Monte Carlo shows the "huge contrast" between the different sides of her character.

The actress-and-singer is Grace in the movie, a character who is mistaken for a princess. She decides to embrace the new identity, causing her and her friends Meg, played by Leighton Meester and Katie Cassidy's character Emma to embark on an adventure.

Costume designer Shay Cunliffe had a lot of fun deciding on the shoes each character would wear, explaining the choices were particularly important for Grace.

"For the first scene, [where she steps out pretending to be the heiress], we chose Louboutin because it's such a recognisable and envied [brand] by everyone, and that red sole instantly tells you it's a very high-end shoe," she explained to WWD. "I put her in a beautiful Stella McCartney sandal when she had to go to the beach. [But] when she's playing the girl with no money, she's in her scuffed-up cowboy boots with every [outfit]. I didn't need to work too hard [to get] the rich girl [look]. I already had my huge contrast."

Shay also showed the other characters' personalities through their shoes. Emma wears a series of high-heeled designers which are completely wrong for travelling in as they "very impractical" as is she. Leighton wasn't quite so lucky when it came to Meg's fashion choices though.

"For [Meg], we made sure she travelled in absolutely flat shoes because the most sensible traveller would do that," Shay explained. (C) Cover Media