Celebrity Red Carpet Transformations By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Updated on October 23, 2012 @ 11:21AM Pin Share Tweet Email Trending Videos Photo: Vince Bucci/Getty Images, Kyle Rover/Startracksphoto.com Red Carpet Transformations 01 of 11 Twilight Stars Transformation Joe Martinez/ MPTV.Net, Devab/INFphoto.com, Jean Baptiste Lacroix/WireImage Our favorite Twilight stars have come a long way since the first installment of the series back in 2008. Most of the cast were seasoned actors pre-Twilight, but for some, this was their big break. Click through the gallery to see how these actors have transformed over the past four years! 02 of 11 Kristen Stewart Devab/INFphoto.com, David Gabber / PR Photos We first saw Twilight's leading lady in the 2002 thriller, Panic Room. Since then Kristen Stewart has appeared in films from Cold Creek Manor to Catch That Kid. In 2007 it was announced that she was cast as Bella Swan and has been playing the part ever since with part one of the final installment, The Twilight Saga: Breaking Dawn - Part 1 in theaters this week. Look for her next year in The Twilight Saga: Breaking Dawn - Part 2, and Snow White and the Huntsman. 03 of 11 Taylor Lautner Jean Baptiste Lacroix/WireImage, Russ Einhorn / Splash News From international martial arts champion to one of the most popular teens in Hollywood, Taylor Lautner has proved time and time again that hard work really does pay off. Our first memories are of a younger Lautner back in 2005 when he starred in both Cheaper By the Dozen 2 and The Adventures of Sharkboy and Lavagirl. He has since become quite the heart throb-citing the incident where 2,000 girls stormed the hotel he was staying in as a time when he actually feared for his life! We see him as Jacob Black in the Twilight series, and up next? Look for him in The Twilight Saga: Breaking Dawn - Part 2 next year and Incarceron in 2013. 04 of 11 Ashley Greene Andy Fossum/Startracksphoto.com, Jen Lowery / Splash News Ashley Greene is best known for her roll in the Twilight series as Alice Cullen, sister to Edward (played by Robert Pattinson). After originally auditioning for the role of Bella, Greene was called back to audition for the part of Alice, launching her career and her status as one of the most popular actresses in Hollywood right now. Look for Greene this week in The Twilight Saga: Breaking Dawn - Part 1 and next year in The Twilight Saga: Breaking Dawn - Part 2 and The Apparition. 05 of 11 Robert Pattinson Joe Martinez/ MPTV.Net, Picture Perfect / Rex USA We first remember Twilight's Robert Pattinson as Cedric Diggory in Harry Potter and the Goblet of Fire. Since then, he's been busy working on films such as Water for Elephants opposite Reese Witherspoon, acting as the famed Edward Cullen in the first three movies of the Twilight series, even singing on the Twilight soundtrack. Look for him this week in The Twilight Saga: Breaking Dawn - Part 1, and next year in The Twilight Saga: Breaking Dawn - Part 2 and Cosmopolis. 06 of 11 Peter Facinelli Steve Granitz/Getty Images, Brian To /Landov We remember Peter Facinelli as Jennifer Love Hewitt's ex-boyfriend, Mike Dexter, in Can't Hardly Wait. Since then, Facinelli has been keeping himself quite busy. With a reoccurring role on Showtime's Nurse Jackie and guest starring on Six Feet Under, to playing Dr. Carlisle Cullen (Edward Cullen's father) in all of the Twilight movies, we've seen him everywhere. What's up next? Keep your eye out for Facinelli this week in The Twilight Saga: Breaking Dawn - Part 1, and next year in The Twilight Saga: Breaking Dawn - Part 2 and Loosies. 07 of 11 Nikki Reed Peter Brooker/Rex, Matt Baron / BEImages Nikki Reed has come a long way since her days as a rebellious teenager in Thirteen. She's acted in films such as Lords of Dogtown, and guest starred on shows like The O.C. Just one of her most prominent roles so far is acting as Rosalie Hale in the Twilight films. Keep an eye out for Reed this week in The Twilight Saga: Breaking Dawn - Part 1, and next year in The Twilight Saga: Breaking Dawn - Part 2 and Downers Grove. 08 of 11 Kellan Lutz Kyle Rover/Startracksphoto.com, Steve Granitz/WireImage Kellan Lutz is known most recently for his portrayal of Emmett Cullen in the Twilight series. We've also seen him in TV shows like 90210 and movies like Accepted. Not to mention, he was one of the models featured in the Calvin Klein X underwear campaign in 2010. Look for him this week in The Twilight Saga: Breaking Dawn - Part 1, and next year in The Twilight Saga: Breaking Dawn - Part 2, Java Heat and more. 09 of 11 Jackson Rathbone Andy Fossum/Startracksphoto.com, Patrick Rideaux/PicturePerfect/Rex USA Jackson Rathbone, perhaps best known for his roles as Jasper Hale in the Twilight films, and as Sokka in The Last Airbender, has compiled quite the resume. His work experience includes everything from a reporter for Disney 411 from 2004 to 2005, to guest starring on No Ordinary Family last year, and much more in between. Look out for him this week in The Twilight Saga: Breaking Dawn - Part 1, and next year in The Twilight Saga: Breaking Dawn - Part 2, among others. 10 of 11 Elizabeth Reaser Chris Polk/Getty Images, Matt Baron / BEImages You may remember her best as Ava (or Rebecca), the patient on Grey's Anatomy that suffered from amnesia, or as Susannah in The Family Stone. Most recently, Elizabeth Reaser has been busy playing Esme Cullen, wife of Carlisle Cullen, in the Twilight series, with the second-to-last installment, Breaking Dawn - Part 1, out this week. What's up next for Reaser? Look for her in The Twilight Saga: Breaking Dawn - Part 2 and Liberal Arts next year. 11 of 11 Anna Kendrick Vince Bucci/Getty Images, Kyle Rover/Startracksphoto.com Anna Kendrick has come a long way since her first role in Broadway's High Society at the age of 12. Since then she's appeared in films like Camp and Up in the Air, and guest starred on TV shows like Fear Itself, and even appeared in a music video. Most recently, she has acted as Jessica Stanley in the Twilight series, with Breaking Dawn - Part 1 coming to theaters this week. Kendrick will be quite busy for the foreseeable future as she has multiple films coming out next year, including, What to Expect When You're Expecting to The Twilight Saga: Breaking Dawn - Part 2.