Everything Justin Baldoni has alleged against Blake Lively as the stars' feud plays out—including in a new federal lawsuit filed Thursday.

Taylor Swift, one of Blake Lively's closest and most famous friends, is now involved in the notorious case between Lively and Justin Baldoni. New documentation supplied by Baldoni's legal team alleges that Lively relied on her celebrity friends and connections to make sure her version of the film "It Ends With Us" was the one that made it to the final cut version of the film.

Justin Baldoni’s suit against Blake Lively alleges the actress used her friendship with Taylor Swift to pressure him amid the 'It Ends With Us' fight.