The Study Bible and Bible Translation used by Josh is the English Standard Version (ESV). This is evident from the layout and font of the print as well as the rendering of Matthew 10:32-33 and Luke 12:48.
From an interview with Producer, Michael Scott: "I'll never forget the night we shot one scene where we were creating rain and had the actors dressed in their clothes, but underneath they had to wear wetsuits just to stay warm!"
When everybody stands up to say, "God's not dead," there is only one student that doesn't stand up. During filming the actor got stuck in the seat and wasn't able to leave the seat.
Ayisha's dad is a staunch Muslim and wants his daughter to wear a hijab. She puts it on while waiting for him to pick her up from school. When the camera goes to a full body shot, she's wearing a t-shirt. There is no way a strict Muslim man would insist his daughter wear a hijab, but allow her to bare her arms in public, yet when she gets in the car, her bare arms, while clearly visible, are never mentioned.
When Professor Radisson reads the letter from his late mother, the voice-over representing the mother starts to read "Let me express...", but the actual letter onscreen reads, "Let me explain..."
Josh Wheaton: I could drop the class, run away, pretend like it never happened, which is what my girlfriend wants. I could sign the paper saying something I don't believe. Or I commit academic suicide in front of a live audience by trying to prove that God exists.