Little is known about the project at this early stage, but according to The Hollywood Reporter, it's an original idea dreamt up by the writer/director and will see animals living wild in Los Angeles going on an adventure. It's described as a blend of live-action and CG, so it seems likely that the creatures will be brought to life digitally. Unless Ponsoldt really wants to make his life hell and aim for computer-generated humans interacting with real animals...
Ponsoldt has has success with smaller movies so far, including Spectacular Now, Smashed and The End Of The Tour. He's stepping up a level for his next film, The Circle, which stars Tom Hanks, Emma Watson and John Boyega. We're still awaiting a confirmed release date for the tech thriller.