"Carmen is extremely diligent, hard working and has a perfect grasp of what the film needs. She is bursting with good ideas, often inspired, with an extensive breadth of musical knowledge and a good contact base. I couldn’t recommend her any more highly."

Scott James Bassett, Producer of Mother’s Day, Against the Law, Don’t Take My Baby and Murdered for Being Different.

"I have worked with Carmen on every series of Our Girl. She has elevated the show with her extraordinary ability. Her attitude and grasp of working to a brief is superb and her music knowledge, and indeed taste, exemplary. I can not recommend her highly enough. I am massively grateful to Carmen for the work she has done for me and hope to work with her on many shows to come."

Tony Grounds, Writer and Executive Producer, Our Girl.

"Working with Carmen Montanez-Callan was an excellent experience. She is a great music supervisor: smart, imaginative, diligent and thorough. The task on Our Girl was to find pre released tracks as well as contemporary music which fitted characters as well as the show.  Her suggestions were outstanding. She is also a deft and fair negotiator. I am very happy to recommend her to anyone."

Tim Whitby, Producer, Our Girl.

"When I had the idea to make They Will Have to Kill Us First my first phone call was to Carmen to find out if what I was imagining was even possible. Carmen's background working within record companies, music video, documentary production and music supervision is a powerful (and very useful) combination of experience. What we were attempting to do - find musicians on the run and in exile, record their stories and their music, put out a film and an album - was fairly ambitious. But we did it, together. I can't imagine having been able to do this without Carmen by my side. She was an integral and invaluable part of this crazy project and her expertise and advice were in constant demand. I am so proud that we achieved exactly what we set out to do."

Johanna Schwartz, Director, They Will Have to Kill Us First'.