It Ends With Us' costars Blake Lively and Justin Baldoni have been feuding since before the film arrived in theaters. Here's a timeline of their spat

Baldoni, who also directed and starred in “It Ends With Us,” denied Lively’s allegations. In January, he filed a $400 million countersuit against the “Gossip Girl” star and her husband, Ryan Reynolds, for alleged defamation and extortion.

The Lively/Baldoni feud unearthed important and novel issues underlying the #MeToo movement and are expected to have significant impact on Hollywood and beyond.