Visible crew/equipment: Near the end of the movie while Will Ferrel is going to the bathroom in his house, the camera person is visible in the mirror off to the right of the screen.
Continuity mistake: Will Ferrell is in a chair with a blue blanket behind him. The shot moves to the other character and back to him, the blanket is gone. In the next pan it's back. (01:44:00)
Character mistake: When Nick and Delilah are out on the porch talking, the kids in the garden remain motionless for 5 seconds. Seemingly, they were waiting for the cue to start acting, but it's very awkward.
