EXCLUSIVE: For Ellen helmer So Yong Kim has set Jena Malone and Riley Keough to lead Lovesong, the tale of best friends Sarah (Keough) and Mindy (Malone) who take off on an impromptu road trip with Sarah’s young daughter in tow and see their deep BFFship develop into a surprising romance – despite the fact that Mindy is about to get married.

Kim wrote Lovesong with frequent collaborator Bradley Rust Gray, whose own features Jack and Diane and The Exploding Girl were produced by Kim. Lovesong reunites the duo with Keough, who starred in Gray’s Jack and Diane and also starred in a short film Kim directed for designer Miu Miu earlier this year, Spark and Light. Malone appeared in For Ellen.

Also cast in the indie, which is backed by Autumn Productions and Gamechanger Films in association with The Monofonus Press, are Brooklyn Decker (Just Go With It, Results), Amy Seimetz (The Killing, Upstream Color), Marshall Chapman (Country Strong, Mississippi Grind), Ryan Eggold (The Blacklist, 90210) and Rosanna Arquette (Girls, Ray Donovan).

Kim won the Special Jury Prize at Sundance for her debut film In Between Days, and nabbed the Prize of the Ecumenical Jury at Berlin for her Korean drama Treeless Mountain. She’s set to film Lovesong in Tennessee. Lovesong will be produced by Alex Lipschultz alongside Gray, David Hansen, and Johnny Mac. Mynette Louie, Laura Rister, and Gamechanger Films’ Julie Parker Benello, Dan Cogan, Geralyn Dreyfous, and Wendy Ettinger will executive produce.

Gamechanger is the female-centric fund founded with the goal of financing narrative features directed by women that’s so far boarded Land Ho! from Martha Stephens and Aaron Katz, The Invitation from Karyn Kusama, and Fresno by Jamie Babbit.

Malone is currently in theaters in Paul Thomas Anderson’s Inherent Vice and recently hit the big screen in the Hunger Games franchise. She’s repped by The Gersh Agency. Keough made her debut in 2010’s The Runaways and has since racked up credits in Jack and Diane, Kiss of the Damned, Magic Mike, and next year’s Mad Max: Fury Road. She’s repped by WME and LBI Entertainment.

Decker is repped by The Gersh Agency and Authentic Management. Seimetz is repped by WME and One Entertainment. Eggold is repped by The Gersh Agency and Untitled Entertainment. Arquette is repped by Lovett Management.