When the original Ghostbusters was made it cost $31 million and on release it made $23 million in its opening weekend and was a studio record. It then grossed over $220 million in North America Alone.
I'm not sure how much Ghostbusters 2 cost to make or how much it made at the box office. Also I am not sure how much both movies have made sibce their releases in total.
Anyway, my question is this, if Ghostbusters 3 was released today, how much money do you think it would make in its opening weekend and how much overall at the box office?
Personally, I don't think another sequel could ever match the originals success. also i'm taking into account the fact that there has been a year on, year on slump generally in box office sales over the past 20 years (16% down from last year).
All in all I would have a very rough estimate at around $15 to $18 million for its opening weekend, taking into account that the film would be as good or better than the original.