"Insurgent," the second movie in the popular "Divergent" series starring Shailene Woodley, debuts in theaters this weekend.
It's one of many highly-anticipated book-to-film adaptations lined up for 2015.
We compiled a list of some of the best books becoming movies this year. This year brings back "Gone Girl's" Gillian Flynn with a new psychological thriller and the culmination of the "Hunger Games" series.
From sci-fi to period pieces, and even some true stories, here are the books you need to read before they become movies this year.
"Insurgent" by Veronica Roth
Release Date: March 20
In the first "Divergent" film we learn members of the dystopian society are tested and assigned one of the five factions at the age of 16. Those who fit into more than one, like protagonist Tris Prior (Shailene Woodley) are deemed Divergent and are considered a threat to society.
In the series' second installment, Tris and the other Divergents are on the run from Jeanine Matthews, leader of the Erudite faction. Tris must embrace her divergence to fight for and protect the ones she loves while uncovering the truth about the past and future of her world.
The much-anticipated sequel returns with stars Shailene Woodley, Kate Winslet, Theo James, Ansel Elgort, and Miles Teller.
"The Longest Ride" by Nicholas Sparks
Release Date: April 10
Two couples separated by generations converge in another one of Nicholas Sparks' tear-jerking romantic tales. Ira is 91-years-old and lost his wife Ruth nine years prior. College student Sophia and bull-rider Luke come from two different worlds but fall deeply in love. While the two stories are different they remind us that the most challenging choices in life can yield extraordinary journeys.
The romantic film stars Scott Eastwood and Britt Robertson.
"The Moon and the Sun" by Vonda N. McIntyre
Release Date: April 10
King Louis XIV is determined to find the key to immortality, and he believes he finds this immortality in a rare sea monster, Sherzad. He plans to endanger and ultimately kill the creature, so against the orders of the king and the pope, a young lady-in-waiting fights to free the innocent creature.
The period piece stars Pierce Brosnan, William Hurt, Benjamin Walker, and Kaya Scodelario.
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