They were told by their Hollywood sources that Ehrenreich, who recently appeared in the Coen Brothers' Hail, Caesar!, has signed on to play Han Solo.
Since the report came out, several of the trades have verified the casting as well.
The Han Solo standalone film will take place, like Rogue One and the animated series Star Wars Rebels, in the time between Episodes 3 and 4, and will deal with how Han Solo became the smuggler with a roguish grin we met in A New Hope.
The film will be directed by Phil Lord and Christopher Miller (The LEGO Movie, 21 Jump Street), based on a screenplay written by Lawrence Kasdan (The Empire Strikes Back, The Force Awakens) and his son Jon.
Star Wars Anthology: Han Solo will be released on May 25, 2018.