Having had an eclectic background in Film/Television, Duncan began as a Music Assistant to composer Barrington Pheloung, working closely with a number of industry professionals on award-winning projects such as HILARY & JACKIE (dir: Anand Tucker) and INSPECTOR MORSE.
After a couple of years freelancing on projects for Tiger Aspect and the BBC, Duncan joined Magnet Films Ltd, a new company established by the late Sir David Frost. During this time, Duncan was involved with the development of a number of projects; which included work with the UK Film Council (now BFI).
Since leaving Magnet Films, Duncan has developed and written a number of screenplays; which have naturally evolved into the creation of dull boy pictures.
In 2015, Duncan wrote and co-produced the award-winning MY FERAL HEART, a feature film directed by Jane Gull. MY FERAL HEART began its festival run with its 'WORLD PREMIERE' on 5th March at the 26th Cinequest Film Festival in California, kick-starting an extremely successful festival run throughout 2016, which included the 70th Edinburgh International Film Festival.
In November 2016 MY FERAL HEART began an independent theatrical release largely through OurScreen, whilst on the way gaining 3 British Independent Film Award (BIFA) nominations (and numerous long-list nominations inc. Best Debut Screenwriter) , wonderful audience feedback (numerous SELL OUT screenings) and rave reviews including that of Mark Kermode, who called it 'richly rewarding' and a film that 'casts a rather enchanting spell'.
In January 2017, MY FERAL HEART became OurScreen's #1 most successful film of all-time, followed by a 'Best Actor' award for Steven Brandon at the National Film Awards, which also included a 'Best Supporting Actress' nomination Shana Swash.
Most recently Duncan picked up the 'Best Original Screenplay' award (2017) at the International Achievement Recognition Awards (IARA).