Visible crew/equipment: During the scene where Ted and Dom are looking at Mary speaking with Warren and Tad from behind the tree, if you look carefully you can see the camera and crew in the reflection in Ted's glasses.

Continuity: About one hour into this movie, when Healy is playing tag with the 'Neary group people' he goes for the touch down and Warren runs after him to get the ball. As Warren first dives for the ball, you can see that he has three red tags attached to his back, in the next shot as he lands you can see that the tags have disappeared.

Continuity: In the confrontation scene where all of Mary's admirers are forcing her to choose between them, Woogie is sat on the couch with a pile of Mary's shoes. Every time the camera shoots back to him, you will notice that the position of the shoes changes each time. This is also mentioned by the directors on the DVD commentary.

Continuity: When Ben Stiller got his "frank and beans" caught in the zipper, the friendly police officer thought he would assist with the problem. He unbuttoned his sleeves and rolled them up, but then the next camera shot showed them buttoned up, and had to be rolled up again.

Continuity: This is during the scene on the outside steps of Mary's office, when Mary and Ted see each other for the first time. A suit-wearing businessman comes from the left side of the screen behind Mary twice. This happens when Mary is saying "Ted? Is...Is that you?" and the camera goes back and forth between Ted and Mary.