User blog:Buckmana/Question about Dance scenes

I was watching the Season 1 opening credits and noticed two specific inconsistencies between the credit version and the scene when from the episode.

The scene that appears in the opening credits is quite different from the scene as it appears in the show. The one from iNevel is particularly different, since it has Sam dancing alone in front of the car instead of with Carly and Chuck and the choreography is different as well.

Did they shoot extra dance scenes or the scenes from different camera angles to get the ones used in the opening credits?