APA (7th ed.) Citation

Ephron, N., Hanks, T., & Ryan, M. (1993). Sleepless in Seattle. Tristar Pictures.

Chicago Style (17th ed.) Citation

Ephron, Nora, Tom Hanks, and Meg Ryan. Sleepless in Seattle. [s.l.]: Tristar Pictures, 1993.

MLA (9th ed.) Citation

Ephron, Nora, et al. Sleepless in Seattle. Tristar Pictures, 1993.