Director Ivan Reitman has stepped down as the brains behind the latest Ghostbusters movie.

The 67 year old, who directed the 1984 spook-chasing film and its 1989 sequel, helped co-write the script for the latest film and had to tweak the storyline when Harold Ramis, who was set for a small role in the movie, died last month (Feb14).

Reitman will stay on as a producer.

The film is finally expected to start shooting early next year (15). Original Ghostbusters star Dan Aykroyd is slated to return, but his co-star Bill Murray is not.