(500) Days of Summer is a 2009 American romantic comedy film directed by Marc Webb, written by Scott Neustadter and Michael H. Weber, and produced by Mark Waters. The film stars Joseph Gordon-Levitt and Zooey Deschanel and employs a nonlinear narrative structure, with the story based upon its male protagonist and his memories of a failed relationship.

Zooey Claire Deschanel is an American actress and musician. She made her film debut in Mumford (1999) and had a supporting role in Cameron Crowe's film Almost Famous (2000). Deschanel is known for her deadpan roles in comedy films such as The Good Girl (2002), The New Guy (2002), Elf (2003), The Hitchhiker's Guide to the Galaxy (2005), Failure to Launch (2006), Yes Man (2008), The Happening (2008), 500 Days of Summer (2009) and Our Idiot Brother (2011). She has also ventured into dramatic film territory with Manic (2001), All the Real Girls (2003), Winter Passing (2005), Bridge to Terabithia (2007) and The Driftless Area (2015). From 2011 to 2018, she starred as Jess Day on the Fox sitcom New Girl, for which she received nominations for a Primetime Emmy Award and three Golden Globe Awards.