He sounds like an Orthodox Jew.
From KPCC: You observe the Sabbath, meaning you don’t work from sundown Friday to sundown Saturday. So what if there’s an issue on [a movie] set Friday night? Do you just not show up?
Devon: I will not come. Every job that I’ve taken, Sabbath observance is very important to my faith, so Friday night at sundown to Saturday night sundown I don’t work. And every job, before I take it, I let them know about the commitment. If ever there’s been a conflict, it’s not really a conflict, because I just say I can’t do it. Every movie that I’ve worked on as an executive, the grosses come out Friday night. I turn off my phone. I don’t know what happens until I turn my phone back on Saturday after the sun goes down. I don’t compromise. If you don’t set boundaries about what’s important, especially in this industry, you won’t have any boundaries … I tell people, If that means losing the job, then [so be it]. I don’t need it that badly.