Bhasin has put together the styling and costumes for the musical romantic-comedy, which is set in New York.
The 29-year-old 'Pirates of the Caribbean' star essays the role of a young songwriter in the film, co-starring Mark Ruffalo and Adam Levine.
"It was a really wonderful experience working with them. I was used to seeing Keira in period films or in high fashion clothing in magazines.
"It was a fun challenge to make her more contemporary and more approachable," said Arjun, who has earlier worked on 'Dil Chahta Hai', 'Rang De Basanti', 'Life of Pi', Zindagi Na Milegi Dobara, among others.
