According to Variety, Harrelson is close to joining the Louis Leterrier-directed production about a team of illusionists who pull off daring bank heists.
If cast, Harrelson will join the likes of Jesse Eisenberg, Mark Ruffalo, Isla Fisher and Morgan Freeman.
Now You See Me is being produced by Alex Kirtzman and Roberto Orci from a script by Boaz Yakin and Edward Rocourt.
Earlier this year, Harrelson was also cast opposite Jennifer Lawrence, Liam Hemsworth and Josh Hutcherson in the film adaptation of The Hunger Games.
Watch a teaser trailer for The Hunger Games below:
> The Hunger Games - in pictures