Which four-letter word makes a film the most successful?

Salma Hayek in Once Upon a Time in Mexico (2003)

When screenwriter Charlie Kaufman (Nicolas Cage) tries to adapt The Orchid Thief to the screen, he develops a serious case of writer's block.

"Sunset Boulevard" Gloria Swanson on the set 1950 Paramount

Tommy Lee Jones, Steven Spielberg, Daniel Day-Lewis, Sally Field, James Spader, Hal Holbrook, Gloria Reuben, David Costabile, Joseph Cross, Walton Goggins, Joseph Gordon-Levitt, Jared Harris, Grainger Hines, Dakin Matthews, Bruce McGill, Tim Blake Nelson, David Oyelowo, Michael Stuhlbarg, and Gulliver McGrath at an event for Lincoln (2012)

Col Needham and Karen Needham

Tim Allen and Jeff Pidgeon in Toy Story 2 (1999)

Christian Bale in The Dark Knight (2008)

Dan Aykroyd and Eddie Murphy in Trading Places (1983)

Marvin Campbell and Joseph Gordon-Levitt in Inception (2010)

Anne Heche in Psycho (1998)

Ziyi Zhang in Crouching Tiger, Hidden Dragon (2000)

Don Stroud and Christoph Waltz in Django Unchained (2012)

Ryan Gosling and Rachel McAdams in The Notebook (2004)

The Oscars (2014)

Christopher Lloyd in Back to the Future (1985)

Christopher Reeve in Superman (1978)

Best Supporting Actor

Anil Kapoor and Dev Patel in Slumdog Millionaire (2008)

Matt Stone, Isaac Hayes, Trey Parker, Mary Kay Bergman, Franchesca Clifford, Anthony Cross-Thomas, and Jesse Brant Howell in South Park: Bigger, Longer & Uncut (1999)

John Hurt and Percy Edwards in Alien (1979)