Originally Posted by Banjo

No, it wasn't caused by the strike. The filming on the movie was completed on schedule. The movie would be perfectly ready for November. However, they decided to move it since they are banking on The Dark Knight.

The 7th movie will not be affected. It will be filmed as scheduled. The script for part one of the 7th movie was recently handed in. The movie will be split into two parts, filmed back to back.