Woody Harrelson was definitely the biggest name in Zombieland's cast when the movie was released in 2009, but since then, he's been getting even more famous. Harrelson, already an Academy Award nominee for The People vs. Larry Flynt, earned his second Oscar nom the year after Zombieland was released for The Messenger. He also burst onto the big franchise scene in 2012, starting his four-film role as Haymitch Abernathy in The Hunger Games series before joining his Zombieland co-star Jesse Eisenberg in the Now You See Me franchise. He also recently joined the Star Wars universe as Han Solo's mentor in the character's upcoming anthology film, and he'll play the villain in War for the Planet of the Apes, the third installment in the rebooted series. On top of all of that, he also earned critical acclaim for his part in the first season of cultural juggernaut True Detective, not to mention popping up in movies like The Edge of Seventeen, LBJ, and Seven Psychopaths.
With his star continuing to rise, it's getting harder and harder to find time in Harrelson's schedule for a possible Zombieland sequel. Even if he could find the time, it's unclear if the star would be on board. In 2011, he cast doubt on the possibility of a sequel, saying he wasn't sure it would be a good idea. "It's one thing to do it when it came out real good and it made a lot of people laugh, but then to do a sequel… 99 out of 100 are worse by a lot," he said. "So I don't know. I don't feel like a sequels guy." Still, he appears to have changed his tune, as writers Rhett Reese and Paul Wernick said in August 2016 that they were meeting with Harrelson about the script, adding that he and the rest of the cast were "pretty excited" about returning. Whether he's into the project or not, it may not be possible for Harrelson to find a way to balance Zombieland 2 with his other commitments.