In 1995, Sonja Phillips began directing pop promos through 4D Films. Videos for Paul Weller, Gabrielle and Black Box Recorder may all be attributed to her name as a result. After advancing swiftly from promos, she began to direct short docs, idents, sponsorship and promotional films for the Discovery Channel and Channel 4.

In 2002, Sonja directed two short films about disabled artists, commissioned by C4's The Slot. She then went on to direct her own short film in 2004; "The Knickerman" made the rounds of the global festivals circuit and not only won the LA Film Festival that same year, but was also was long-listed for an Oscar. "The Knickerman" was the first installment of a trilogy of shorts set in Lincolnshire. Sonja directed the second installment in 2007; upon its completion in early 2008, "The Pond" started its festival run in the spring of 2008 and won multiple awards, including: Best Director at the L.A. Shorts Fest, 2nd Prize at the Rhode Island Film Festival, Special Jury Prize at Sapporo and Best Film and Best Drama at the New Producers Alliance Awards.

Following these successes, Sonja founded her own production company, andSOME Films, through which she both directs and produces interstitials, branding ads, sponsorships, documentaries and films. In 2008, she directed 7 short films around Europe for 'Animal Planet' that were broadcast on all the network's channels.