The guitarist has soundtracked “a diptych of one man’s day”.

St. Vincent has scored a new short film titled Come Swim, which is Twilight actress Kristen Stewart’s directorial debut.

The duo, who are rumoured to be dating, worked on the film as part of Refinery29’s Shatterbox Anthology series focusing on women directors. Due to premiere at Sundance Film Festival, it’s described as “a diptych of one man’s day, half impressionist and half realist portraits.”

It’s not the only film project St. Vincent is working on at the moment – she’s also writing and directing a horror vignette for a project called XX: Four Deadly Tales by Four Killer Women.

St. Vincent’s 2014 FACT mix shines a light on some of her favourite artists, from King Krule and Kanye West to Liz Phair and Charles Mingus – stream below. [via Pitchfork]