How did a fantasy romantic-comedy about The Beatles turn divisive among top critics?

In which dumb Tweets about Ghostbusters teach us a valuable lesson. Sort of. Or maybe not.

Directed by Paul Feig. Produced by Ivan Reitman and Amy Pascal. Written by Katie Dippold and Paul Feig. Release date: July 15, 2016. ...

Directed by Clay Kaytis and Fergal Reilly. Produced by John Cohen and Catherine Winder. Written by Jon Vitti. Release date: May 20, 2016. ...