During the filming of the opening scene with Regina and Mr. Gold, Robert Carlyle was hesitant about throwing the apple at Lana Parrilla because he was afraid that someone would get hurt, but Lana Parrilla pointed out that her father was a professional baseball player and assured him that she could catch it.
In the flashback, the Evil Queen is shown being far older than Snow White, yet in the present day Lana Parrilla is only 1 year older than Ginnifer Goodwin. However, Regina could have used magic to stall her own aging.
During the filming of this episode, Bailee Madison had a loose tooth which had to be glued back into in her mouth.
Daniel wants to take Regina to Firefly Hill, which is where Grumpy meets up with Nova in "Dreamy."
To prepare for her role as young Snow White, Bailee Madison watched videos of Ginnifer Goodwin and studied her performance in order to make her own performance consistent with Snow White's older persona. She also wore green contact lenses, since her eyes are naturally brown.