The Fountain is a 2006 American epic science fiction romantic drama film written and directed by Darren Aronofsky and starring Hugh Jackman and Rachel Weisz. Blending elements of fantasy, history, spirituality, and science fiction, the film consists of three storylines involving immortality and the resulting loves lost, and one man's pursuit of avoiding this fate in this life or beyond it. Jackman and Weisz play sets of characters bonded by love across time and space: a conquistador and his ill-fated queen, a modern-day scientist and his cancer-stricken wife, and a traveler immersed in a universal journey alongside aspects of his lost love. The storylines—interwoven with use of match cuts and recurring visual motifs—reflect the themes and interplay of love and mortality.

Aronofsky originally planned to direct The Fountain on a $70 million budget with Brad Pitt and Cate Blanchett in the lead roles, but Pitt's withdrawal and cost overruns led Warner Bros. Pictures to shut it down. Aronofsky rewrote the script to be sparser, and was able to resurrect the film for $35 million with Jackman and Weisz in the lead roles. Principal photography began from November 2004 to February 2005, and mainly took place on a sound stage in Montreal, Quebec. Aronofsky used macro photography to create key visual effects for The Fountain at a low cost.

The film was released theatrically in the United States and Canada on November 22, 2006. It was a box office bomb, only grossing $16.5 million worldwide against a production budget of $35 million, and received generally mixed reviews from critics, but it has gained a cult following since its release.