FRIDAY AM UPDATE: Focus Features's Atomic Blonde grossed $1.52 million from preview screenings, which began last night in 2,685 theaters. That's nearly double the $870k John Wick brought in from preview showings before opening with $14.4 million and about $700k behind the $2.2 million John Wick: Chapter Twogrossed before its $30.4 million opening earlier this year. It's also behind the $1.8 million Ghost in the Shellbrought in earlier this year ahead of its $18.6 million opening.   Loo