'The Big Sleep'
One of Bogart's most famous films, this 1946 noir crime drama was adapted from a crime novel by celebrated author Raymond Chandler. The film stars Bogart as detective Philip Marlowe who is solved to hire a complex case that quickly becomes confusing and down-right convoluted.
However, Bacall and Bogart's undeniable screen chemistry was capitalized on greatly, with additional dialog added to increase the romance and sexual tension between Bogart's Marlowe and Bacall's Vivian Rutledge.
The Big Sleep was one of the first films to aggressively capitalize on the 'Bogie and Bacall' craze in America, and their relationship became one of the defining characteristics of the film.