HAILEE STEINFELD ON THE SET OF "CAN A SONG SAVE YOUR LIFE" IN NEW YORK CITY

On-set her latest film, Hailee Steinfeld was seen working for "Can a Song Save Your Life?" in New York City.

The 15-year-old "True Grit" actress looked a lot older in a tied-up purple leopard tank top and short shorts as she ran around a corner in East Village in a pair of black ankle boots with her "Avengers" co-star hot on her heels.

Hailee took a break from filming on Thursday (July 5) to tell her Twitter fans, "Totally diggin my wardrobe for this film! It's a lot different then how you've all seen me...but I think you'll like it too ;) ‪#CASSYL".

Expected to hit theaters some time in 2013, "Can a Song Save Your Life?" follows the story of a dejected music business executive who forms a bond with a young singer-songwriter that just moved to Manhattan.

Miss Steinfeld is joined by Adam Levine, Keira Knightley and Cee-Lo Green.

HOLLYWOOD HOTTIES - IN MIU MIU's "MUTA" PARTY

Drawing out Tinseltown beauties of all ages, Lucrecia Martel's 'Muta' presented by MIU MIU event was the place to be on Tuesday night.

Held at a private residence in Beverly Hills, California, lovely young ladies including Hailee Steinfeld, Ashley Tisdale, Camilla Belle and Emma Roberts all got prettied up for the fashionable fete.

Tweeting her excitement over the famous designer's classy soiree, Miss Tisdale wrote prior to arrival, "Super excited for the Mui Mui party tonight!"

Also joining in on the festivities were more-seasoned Hollywood gals including Malin Akerman and Diane Kruger, along with model.actress Kate Mara.

Being the youngest of the group, 14-year-old Miss Steinfeld partook in the MIU MIU festivities thanks to her role as face of the brand - as she recently shot their Autumn/Winter 2011 collection campaign.

Talking about the experience, Hailee told press, “It’s so much fun to have the chance to work with such a gifted designer and wear these incredible clothes. I feel so lucky to be a part of it."