In the scene where they are having dinner for the first time with Beth's mom, Nick is wearing a red shirt they cut away to a different scene and when they come back he is wearing a green shirt.
When Nick is explaining to Amy where they will live, he points to the brightest star, calls it Orion, and states it is the North Star. Orion is not a star, it is a constellation. The North Star is Polaris and it is not the brightest star in that area of the sky.
When Nick is explaining to Beth where they will live, he points to the brightest star, calls it Orion, and states it is the North Star. Orion is not a star, it is a constellation. The North Star is Polaris and it is not the brightest star in that area of the sky.
When Amy mentions that Beth Sawtelle is getting married in five days, her lips say four.
At the start of the wedding an organ is playing but Mrs.Claus is play the piano.