I almost didn't see this film, buy my wife was late getting to the theatre, so we caught this one. I'm glad I did, because I liked it. Perhaps it was because the theatre was very loud, The ending was a little different with the ghost staying with one of the main characters right up until the end.
Sure, a bit of a ripoff, but I liked the pace and the different camera shots.
This site http://tvlinks.voodeedoo.org/ has a mother load of great cartoons and TV shows with most of them containing entire seasons. Enjoy them while you can as I am sure they will soon suffer a You Tube type demise.