The Divergent movie is set to begin filming in April, and cast are already arriving on location!

The first sign of preparations came from Miles Teller, who we told you earlier this month will play Tris’ enemy Peter. He tweeted the following Sunday night:

We’re hoping set photos surface online thanks to paparazzi, or the studio decides to offer up a first look at a Tris and potentially other characters sometime this spring. We suspect they’ll be spending a lot of time filming indoors, so it may be hard for us to catch glimpses. Teller and other cast members are likely arriving early for costume fittings and stunt training.

Earlier this month we learned Theo James will play Four, Kate Winslet will play Jeanine, Jai Courtney will play Eric, Maggie Q will play Tori, Zoe Kravitz will play Christina, and Ansel Elgort will play Caleb. Shailene Woodley will take the lead role of Tris.

The Divergent trilogy was written by Veronica Roth, and book 3 is due out this October. The film will be directed by Neil Berger, and the script was penned by Evan Daughtery and Vanessa Taylor. Divergent opens in theaters March 21, 2014.