Atom is offering Buy One Get One Free tickets for the new Conjuring movie. Seems to work for regular and Imax showings.
Valid June 2 to 13 or while supplies last when you see a banner promoting the offer. T&C of offer is the same as previous BOGO Atom offers. Valid in US only. One free ticket per account. Available through the Atom app, website, and "Movie Tickets by Atom" on Snapchat.