In a pre-Cannes deal, Magnet Releasing has acquired worldwide rights to “Honeymoon,” starring “Game of Thrones” actress Rose Leslie.

The movie, the directorial debut of Leigh Janiak, had its world premiere at South by Southwest earlier this month. Harry Treadaway (“The Lone Ranger”) also stars.

Janiak co-wrote the film with Phil Graziadei; Patrick Baker and Esme Howard produced.

Leslie and Treadaway star as newlyweds who travel to a remote lake country for their honeymoon, which is disrupted when the wife is found wandering and disoriented in the middle of the night.

Christina Rogers and the Magnolia Pictures International team will be representing the film at Cannes. The film will also screen at the Tribeca Film Festival in April and Magnet will release the film in the U.S. later this year.

The deal was negotiated by Dori Begley and Peter Van Steemburg with ICM Partners and the filmmakers legal counsel Evan Krauss of Gray Krauss Stratford Sandler Des Rochers LLP.