Bertie Brosnan is an Irish screenwriter, film producer, actor and screen director. He was born in Tralee, the capital of County Kerry, in the Republic of Ireland.

Bertie did his leaving certificate with Mercy Secondary School, Mounthawk, in 2002. He went on to study Civil Engineering at the Institute of Technology, Tralee, obtaining a Higher Certificate in 2005.

Bertie started part-time theatre performance training with the Gaiety School of Acting in late 2008 and went on to take classes in screen acting with the school in 2009. He continued his screen acting training in 2010 with Company D Theatre Company and David Scott in Dublin. Bertie also trained with Improv Olympic in Hollywood and renowned coach Doug Warhit while visiting the United States in 2011.

Bertie made his Television acting debut on TG4's television programme Marú in 2010. He landed acting roles in various films such as Chemical 13, a horror short film from Guillermo Arredondo at Garredondo Productions. Bertie was cast in another horror short film called Prey, which was written & directed by the award-winning director Randal Plunkett, the current Lord Dunsany. Next was a dystopian war feature film titled Guerrilla produced by Lord Dunsany & directed by Blaine Rennicks, the award-winning cinematographer for Bertie's film Sineater.

Later, Bertie gained roles on an RTÉ/Filmbase funded short film, Empty. He landed other cameo roles throughout the years, including a Horror feature film Brackenmore produced by Caragh Lake Films and distributed by Amazon's Prime Video.

Bertie began writing screenplays early on in his career, and his script Oh, the Accent! came to fruition in 2012 with Bertie starring in the lead role. Oh, the Accent! was aired on Planet 3 TV in 2012. Bertie's professional directorial debut came with his short film Jacob Wrestling With The Angel in 2013. The following year he went on to write & direct his second short film titled Sineater. Both films were screened at international film festivals in Ireland and overseas.

Sineater & Jacob Wrestling With The Angel went to market at the Cannes Short Film Corner and gained worldwide deals with Shorts TV & SoFy TV. Off the back of that success, Bertie won a film bursary from Cork City Arts in 2016 and produced two more arthouse short films, Forgotten Paradise & Last Service. Mark Ziobro, a popular online critic from The Movie Buff, said of Bertie's films, "Brosnan has presented a series of films that do what independent films do best – they make us think, they make us feel, they make us question."

In the summer of 2016, production began on Bertie's feature film Con, and it premiered at Kerry Film Festival in 2018. The Dublin Inquirer said that "Con is a view into a potential filmmaking disaster. Brosnan's film shows the unmaking of a documentary, alongside the descending fortunes of its subject."

From here, Bertie began branching out as a producer into new genres with other collaborators. He co-produced an RTÉ-funded short film by the famous comedy troupe CCCahoots Productions in 2017. Next up, Bertie was drafted in by Locked In The Attic Productions to help develop and produce the Award-Winning feature film Misty Button which began its run of festivals in 2019. Misty Button was successfully distributed to Amazon Prime and Sky Cinema in 2020/2021. Also, in 2019, Bertie became an associate producer of the controversial documentary Troll Inc highlighting the birth of internet trolling as we know it today. Bertie continues his work in editing, writing and developing his future projects, including documentaries and feature films.

Filmmaker By Heart was born for his love of service and giving back to his community. The idea started with a small booklet written to grown an email list, but then evolved into a book for Kindle publishing, from there it morphed into an online course. After all the work, it was decided to use the 40,000 word document, give or take as inspiration for a blog over the course of a year, or two coupled with YouTube videos, and other social media. Medium provides the best platform for the text part of the content and we will link everything else as we go along.