Gemma Arterton has joined the cast of New Regency and Stone Village Pictures' online gaming drama Runner Runner. The film already stars Justin Timberlake and Ben Affleck.

The film follows a Princeton student (Justin Timberlake), who loses his tuition due to a online gaming addiction. He ends up becoming the sidekick to the site's corrupt boss. The actress will portray Justin Timberlake's girlfriend.

Brad Furman is directing the project with Leonardo DiCaprio and Jennifer Davisson Killoran producing.

Production for the project is expected to being in Puerto Rico in June.

Cinemark Movie Club