Jennifer Lawrence will reprise her role as Mystique in "X-Men: Apocalypse
Jennifer Lawrence will reprise her role as Mystique in "X-Men: Apocalypse." Pictured: Lawrence arrives at the premiere of "The Hunger Games: Mockingjay - Part 1," in Los Angeles in 2014. Reuters

Bryan Singer is keeping the fans well informed with behind-the-scenes happenings on the “X-Men: Apocalypse” Montreal set. In his latest Instagram tease, he shared a photo of cast chairs lined up in a room. Names of the film’s major characters appear to be written on the backrestS of the chairS. Raven/Mystique (Jennifer Lawrence), Storm (Alexandra Shipp), Hank McCoy/Beast (Nicholas Hoult), Charles Xavier (James McAvoy), Alex Summer/ Havoc (Lucas Till), Erik Lehnsherr / Magneto (Michael Fassbender) and Apocalypse (Oscar Isaac) are some of the names that can be seen.

According to Web speculation, it appears to be a script reading session for a scene, which involves almost all the “X-Men” characters. Singer captioned it, “Big day #Xmen #XmenApocalypse.”

“X-Men: Apocalypse” has been shooting in Montreal for weeks now. Singer is directing the production from the screenplay by Simon Kinberg. Other cast members include Rose Byrne, Tye Sheridan, Sophie Turner, Kodi Smit-McPhee, Evan Peters, Lana Condor and Olivia Munn. It is the sequel to 2014’s “X-Men: Days of Future Past” and will feature Apocalypse as the main villain. Isaac who is playing the character is thrilled to play it.

“My first comic book I ever collected was ‘X-Factor’ and I actually really loved Apocalypse, and yeah, so when I heard that maybe that would be the next villain, I was like, ‘Guys, get me in there, I want to meet with them’…Apocalypse is so cool and weird and scary and I wanted to be a part of that,” Isaac revealed to Movie Fone.

The film will also focus on Mystique and Beast’s love story as revealed by Kinberg in his interview with MTV. “The relationship between Beast and Mystique is a really interesting one that we didn’t have a lot of time to explore in ‘Days of Future Past’ so we’ll have an opportunity to do more of that in ‘Apocalypse,” he said.

John Ottman has supplied the music and Newton Thomas Sigel has done the cinematography. It will open May 27, 2016.