Knight and Day

Knight and Day,[4] (formerly titled Wichita[5] and Trouble Man[4]) is a 2010 action comedy film starring Tom Cruise and Cameron Diaz. The film, directed by James Mangold, is Cruise and Diaz's second on-screen collaboration following the 2001 film Vanilla Sky.[6]
The film went through a period of "development hell"; which included a prior film director and multiple writers that worked on the script. Producers for Knight and Day went through multiple other actors for the lead roles before eventually settling on Cruise and Diaz. Adam Sandler, Chris Tucker, and Gerard Butler were considered by the film's producers for the male lead that later went to Cruise, and Eva Mendes was initially set for the role that Diaz later portrayed in the movie. The film's investors offset funding costs by paying Cruise a lower advance fee and neglecting to provide him with a share of the revenue until the financiers earn back their initial investment in the production.[7] Filming took place in several locations, mainly in several cities located in Massachusetts, while other scenes were filmed in Spain and parts of Austria.
Knight and Day was released in the United States on June 23, 2010. The film received mixed reviews from film critics; it garnered a "rotten" rating on Rotten Tomatoes based upon aggregated reviews,[8] and a rating of "mixed or average reviews" at Metacritic.[9] Knight and Day performed poorly at the box office in its debut,[10] proceeded to fall nine percent in ticket sales in its second day after being released,[11] and took third place behind films Toy Story 3 and the comedy Grown Ups in its first Friday after release.[12] At $20.5 million, the total U.S. weekend box office take for Knight and Day was the worst result for an action film starring Tom Cruise in 20 years

Casting
The film changed lead cast members multiple times while the production was mired in a period known as "development hell".[16] Prior to the finalization of actors Tom Cruise and Cameron Diaz, comedian and actor Adam Sandler was offered to star in the film when it was titled Wichita, but declined explaining, "I just don't see me with a gun."[16] Wichita was developed under production at Revolution Studios; the film was later moved to Sony Pictures.[16] At Sony Pictures, actors Chris Tucker and Eva Mendes were slated to portray the two lead roles in the film; it was titled Trouble Man and intended as a romantic vehicle film for Tucker and Mendes.[15][16]
After Tucker and Mendes dropped out of the lead roles, Diaz signed on to the film with Sony Pictures, and actor Gerard Butler met with production staff regarding starring opposite Diaz.[16] Butler instead decided to take on the lead role in the film The Bounty Hunter, opposite actress Jennifer Aniston.[16] Tom Cruise considered accepting a role in the film; at the time he was auditioning for parts in five films including Salt, and The Tourist.[16] Cruise decided he wished to star in Knight and Day, and had a vision for the film which included modifying the male lead character with his own ideas.[16] Other actors cast in the film included Maggie Grace, Peter Sarsgaard, Marc Blucas, Paul Dano, Viola Davis, and Jordi Mollà