It looks like Fox’s reboot of “The Fantastic Four” is getting closer to finalizing its cast.

Sources tell Variety that Simon Kinberg has finished rewriting the script and that the studio plans to begin testing thesps for the roles of Reed Richards (aka Mister Fantastic) and Sue Storm (aka the Invisible Woman) by the end of the month.

Teller was asked Tuesday in an interview at Sundance if he would be playing Richards. He replied that, “Yeah that should be happening in the next few weeks,” making it seem like the actor was already on board. But sources say the actor was misunderstood and that he is testing but isn’t the frontrunner or officially attached. Other actors expected to test for the part include “Game of Thrones'” Kit Harington and Richard Madden.

Kate Mara and Saoirse Ronan are expected to test for Sue Storm. Michael B. Jordan is attached to play Johnny Storm, but he is expected to test with the actors to see which group has the best chemistry.

Josh Trank is on board to direct the pic with Kinberg, Matthew Vaughn and Gregory Goodman serving as producers.

“The Fantastic Four” is slated to bow June 19, 2015.