Usually, MTV News waits to bust out a cheat sheet — one of our handy guides to everything you need to know about a major film release — until a film actually hits theaters. But we already have so much "Eclipse"-related content, and fan enthusiasm is so high for Robert Pattinson, Kristen Stewart and Taylor Lautner's new film, that we've gone ahead and put together a cheat sheet for the teaser trailer of the third flick in the "Twilight" franchise.

Read on for every casting development, every cast interview, every sneak-peek photo and much more. With over three months to go until the movie's release, here's MTV's "Eclipse" trailer cheat sheet.

Beginnings
Even before "Twilight" hit theaters, Summit Entertainment optioned the rights to "Eclipse" in mid-November 2008. By early 2009, with the first vampire flick on its way to a $385 million worldwide haul, "Eclipse" got a release date: June 30, 2010. Names like Drew Barrymore and Juan Antonio Bayona were tossed around as possible directors before David Slade won the job in April of '09. Two months later, we found out that filming would begin in mid-August and wrap in late October 2009.

Gathering The Cast
Obviously, Pattinson, Stewart and Lautner would be back for "Eclipse." But filmmakers had to flesh out a new cast of characters for the third film. In July came word that Xavier Samuel had signed on to play a "newborn" vampire. In August, Jodelle Ferland was cast as another "new" vampire. Other actors like Julia Jones, Catalina Sandino Moreno, Tinsel Korey, BooBoo Stewart and Jack Huston joined on as well. But the biggest casting move came in July, when Bryce Dallas Howard controversially replaced Rachelle Lefevre in the role of Victoria.

"Eclipse" Stars Dish
As the months went by, the stars of the film started to share their excitement about "Eclipse" with MTV. Jackson Rathbone and Kellan Lutz spoke about their intense preparation for some fight scenes. Lautner revealed his excitement about working with a new director. Ashley Greene gushed about Slade's gritty vision for the film. Howard admitted to the trickiness of taking over Lefevre's role. And Stewart dished about one of her favorite "Eclipse" scenes. The list of interviews goes on and on.

First Looks
Shortly after the start of filming in August, we got our first look at the cast in action: Howard and Samuel locking lips. Slade also posted pictures on his Twitter account, including a stunning one of Lautner flipping through the air. The first official still arrived in October: Pattinson and Stewart together in a field of wild flowers.

Enter The Trailer
Word dropped in February that the "Eclipse" trailer was set to debut during screenings of Pattinson's romantic drama "Remember Me," which is poised to hit theaters on March 12. Early this month, Pattinson revealed that he'd already seen the trailer. The rest of the world can now say the same thing: the love-triangle-displaying, vampire-action-revealing trailer hit the Web on Thursday (March 11).

Check out everything we've got on "The Twilight Saga: Eclipse."

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