Robert Arnold, founder of Lateral Films, is a filmmaker based in the San Francisco Bay Area. His recent films include Annabelle (2012), There's No Sound in My Head (2010), and All Animals (2009), which won the Director's Choice Award at the San Francisco International Festival of Short Films 2009. Annabelle and All Animals were both co-directed with Robert's creative partner, writer Cynthia Mitchell. They just completed The Exchange, a narrative feature shot on location in Paris and Normandy.

In 2007, Robert's feature-length documentary, The Key of G, won the Golden Gate Award for Best Bay Area Feature Documentary at the San Francisco International Film Festival, and aired nationally on PBS. It is now in educational distribution through New Day Films.

Robert also works as a freelance cinematographer, editor, and colorist. His editing work includes Sins Invalid and This Dewdrop World (both 2013) and Families are Forever (also 2013), which premiered at the Frameline Festival.

His work as a colorist can be seen in Interior.Leather.Bar (Sundance 2013), Hotel 22 (Sundance 2014) Slomo (2013, shortlisted for an Oscar), Top Spin (2014), and The Immortalists (2014), among many others.

Robert studied Humanities at the University of California, Berkeley; Film Production at San Francisco State University; and holds a BFA from the San Francisco Art Institute.