The film stars Kristen Stewart, Robert Pattinson, and Taylor Lautner, reprising their roles as Bella Swan, Edward Cullen, and Jacob Black, respectively.

[6] Bryce Dallas Howard joins the cast as returning character Victoria, who was previously portrayed by Rachelle Lefevre in the first two films.

[7] Principal photography began on August 17, in Vancouver, British Columbia, Canada,[8] and finished on October 31, with post-production beginning early the following month.

It held the record for biggest midnight opening in the United States and Canada, grossing $30.1 million, beating The Twilight Saga: New Moon until it was surpassed by Harry Potter and the Deathly Hallows – Part 2 (2011).

[12][13] The film then scored the biggest Wednesday opening in the United States and Canada with $68.5 million, beating Transformers: Revenge of the Fallen (2009).

Edward's clairvoyant sister, Alice Cullen, foresees the newborn vampire army, led by Riley, attacking Forks.

Edward's family chase Victoria through the forest, but she escapes into werewolf territory, causing an incident between the vampires and the werewolves that flares up tensions between them.

The two make out, but Edward finds it too dangerous, and explains that he wants to wait until marriage, after which he shows Bella his mother's ring and asks her to marry him, and she says yes.

In early November 2008, Summit Entertainment obtained the film adaptation rights to the remaining novels in the Twilight book series, New Moon, Eclipse, and Breaking Dawn.

David Slade dove right into the project, interviewing cast members individually two to three times to discuss characters and the plot.

[30] Summit Entertainment revealed that they would replace Rachelle Lefevre, who played an evil vampire named Victoria, with Bryce Dallas Howard in late July 2009.

[8][37] On August 29, photos captured Kristen Stewart, Billy Burke, and other principal actors, filming a scene with graduation caps and gowns.

[46] The film's soundtrack was released on June 8, 2010, by Atlantic Records in conjunction with music supervisor Alexandra Patsavas' Chop Shop label.

[53] In late February 2010, Summit Entertainment announced that the first trailer would be attached to the studio's own film Remember Me, which also stars Robert Pattinson.

On March 19, 2010, The Twilight Saga: New Moon was released on DVD and Blu-ray; the Walmart Ultimate Fan Edition includes a 7-minute first look at Eclipse.

[58] On June 6, 2010, a sneak peek of the film was shown at the 2010 MTV Movie Awards; that same week, more clips and TV spots were released also.

The event was streamed live from Philadelphia and San Diego, and included cast member appearances and special previews of Eclipse.

The Two Disc Special Edition DVD and Blu-ray discs include special features such as: eight deleted and extended scenes, music videos by Muse and Metric from The Twilight Saga: Eclipse: Original Motion Picture Soundtrack and commentaries by Kristen Stewart and Robert Pattinson, Stephenie Meyer and Wyck Geoffery.

[73] Eclipse set a new record for the biggest midnight opening in the United States and Canada in box office history, grossing $30.1 million in over 4,000 theaters.

The site's general consensus is that, "Stuffed with characters and overly reliant on uninspired dialogue, Eclipse won't win The Twilight Saga many new converts, despite an improved blend of romance and action fantasy.

[92] Rick Bentley of McClatchy Newspapers said the film was the best in The Twilight Saga so far, suggesting that, "The person who should be worried is Bill Condon, the director tapped for the two-part finale, Breaking Dawn.

"[93] The New York Times praised David Slade's ability to make an entertaining film, calling it funny and better than its predecessors, but wrote that the acting has not improved much.

[94] Giving the film 4.5 out of 5 stars, Betsey Sharkey from the Los Angeles Times praised David Slade's method of blending his previous works to form a funny movie.

[96] Roger Moore of the Orlando Sentinel, who gave the film 2.5 out of 4 stars, said, "The dullness of the performances really stands out when somebody like Bryce Dallas Howard, or Anna Kendrick turn up and liven up their scenes."

[97] Michael Phillips of the Chicago Tribune gave the film 2 out of 5 stars, stating that David Slade's pacing is "everything like molasses running uphill".

He also criticized the characters, the actors portraying them, the big close-ups of hand-held devices, and called Howard Shore's score "gunk".

"[99] Geoff Berkshire of Metromix said that while "Eclipse restores some of the energy New Moon zapped out of the franchise and has enough quality performances to keep it involving", the film "isn't quite the adrenaline-charged game-changer for love story haters that its marketing might lead you to believe.

He criticized the "gazes" both Edward and Jacob give Bella throughout the film and said audiences unfamiliar with the saga would understand the opening or closing scenes.

[102] The Guardian's columnist Peter Bradshaw gave the film a one-star rating in a review that lampooned Bella's continued abstinence, among other plot elements.

Bradshaw, dubbing the series "The epic of the unbroken duck", wrote that "Bella Swan is starting to make Doris Day look like the nympho from hell", and concluded that "it could be time to sharpen the wooden stake.