I'm watching reactions about the It Ends With Us promotion efforts and it's just amazing how the promo was handled from the director vs producer side. Such different reactions! The director handled the promo so wonderfully and seems like a great person.
The producer side seemed to be promoting something else, based on what I'm seeing from interviews.
I haven't seen the promo
Here's just one reaction video about the promo drama.
Why Everyone Is Turning Against Blake Lively
Why Everyone Is Turning Against Blake Lively 
Over reaction against Blake perhaps? The title alone so chilling though.