About Me

LIBERTY GLOBAL

As a Senior Creative Producer at Liberty Global, I have led creative campaigns focused on championing people, such as the Youth Council, REACH mentorship initiative, and the Fast Forward program—a group wide flagship program for emerging leaders. My genuine interest in individuals, both creatively and professionally, fuels my collaborative and innovative mindset.

Second, I have played a pivotal role in launching unique brands and products while raising the standard of work across the business. Taking on senior-level responsibilities with high-profile asks, from fast-turnaround interviews to interactive events content, has allowed me to push the boundaries of film and motion style. Collaborating with experts across departments, such as Finance and Cybersecurity, has been incredibly rewarding, and the results are reflected in a more refined approach to the Liberty Global brand. I’ve developed new assets, templates, and guidelines to be used across creative projects, ensuring consistent quality and innovation.

Finally, I have expanded relationships within the company’s creative network. I’ve onboarded new partners, diversified the type of content produced, and earned recognition, including being shortlisted for Creativepool’s Next Gen Talent of the Year award several times. I have also contributed to the British Guild of Film Editors magazine, fostering a culture of continuous learning within the organization and creating an environment where creativity can flourish.

All images (c) Liberty Global
Photography by Cristian Solimeno and Sidney Berthier

JOHN CLEESE

To launch John Cleese's first-ever talk show on GB News, I directed and crafted key elements of the campaign's promotional material: a feature-length look at the making of the show, the main series promo, press photography, radio adverts and stills elements for the poster. Working closely with Cleese, I shot & edited many deliverables myself using a combination of hybrid cameras (Sony FX6, Sony A7SIII, Fujifilm X-H2S & X-T5). The campaign was widely covered in mainstream media with mention of my work in the Times and METRO.

Executive Producer: Andrew Doyle
Producers: Martin Gourlay, Lottie Gazzard
Creative Director & Photographer: Sidney Berthier
Art Director: Jamie McKenzie
Cinematography: Alasdair Tallentire
Designer: Mila Graf
Colourist: Alex Webb
Composer: Ben Castle

"I'm very impressed with Sidney: he transforms news into stories... And who doesn't like a good story? I'm also impressed that he is self-taught. Unbelievable!"

"Arresting, engaging, and tightly crafted pieces of work. Super cool to see you trying out different styles like mixing a mockumentary film in amongst your news stories! You clearly love what you do and do it well. Bravo."