APA (7th ed.) Citation

Millennium Films, Scott Free Productions, Studio Canal, Joffe, R., Kidman, N., Firth, C., & Strong, M. (2015). Before I go to sleep. [Publisher not identified].

Chicago Style (17th ed.) Citation

Millennium Films, Scott Free Productions, Studio Canal, Rowan Joffe, Nicole Kidman, Colin Firth, and Mark Strong. Before I Go to Sleep. [Place of publication not identified]: [Publisher not identified], 2015.

MLA (9th ed.) Citation

Millennium Films, et al. Before I Go to Sleep. [Publisher not identified], 2015.