Riverstone Pictures and Remstar Studios have come on board to finance the science-fiction thriller “Replicas,” starring Keanu Reeves and Alice Eve.

“Replicas” has started principal photography in Puerto Rico with Jeffrey Nachmanoff directing. Lorenzo di Bonaventura and Stephen Hamel share producing duties with Keanu Reeves, Mark Gao and Luis Riefkohl.

Lotus Entertainment is handling worldwide sales and will be selling “Replicas” at next month’s Toronto International Film Festival. Lotus sold multiple markets at Berlin last year.

The film is financed by Riverstone, a Reliance Entertainment company backed by Ingenious Media. Remstar Studios is co-financing, and Blue Rider in Puerto Rico is facilitating the financing locally.

Riverstone co-founders Nik Bower and Deepak Nayar will executive produce, alongside Bill Johnson and Jim Seibel for Lotus, Remstar’s Maxime Remillard and Clark Peterson, and Walter Josten of Blue Rider, Erik Howsam of Di Bonaventura Pictures and James Dodson.

The story, written by Chad St. John, takes place after a car accident kills the loving family of a daring neuroscientist — who will stop at nothing to bring them back.

Di Bonaventura Pictures has produced the “Transformers” and “G.I. Joe” franchises” along with “Shooter,” “The Devil Inside” “Side Effects” and the upcoming “Deep Water Horizon” and “Granite Mountain Hotshots.”

Hamel is currently producing sci-fi film “Passengers,” starring Jennifer Lawrence and Chris Pratt. Riverstone has financed six films, including Taylor Sheridan’s directorial debut “Wind River” and Peter Landesman’s Watergate drama “Felt,” starring Liam Neeson, and is developing its own production with family film “Show Dogs,” directed by Raja Gosnell, shooting in the fall.

Lotus’ most recent release was the Tom Hanks’ “A Hologram for the King” and upcoming films include “Hands of Stone,” starring Edgar Ramirez and Robert DeNiro; Luis Prieto’s “Kidnap,” starring Halle Berry; and Sascha Gervasi’s “November Criminals,” starring Ansel Elgort and Chloe Grace Moretz.

Remstar is currently in production on “Ideal Home,” starring Paul Rudd and Steve Coogan.