This is a fun movie, it blends nostalgia with new material very well and treats the previous films with respect. Mckenna Grace is a standout, putting on the performance of the film, which she is, at this point, known for. She showcases her talent that will definitely make her a future superstar actress. At some points, call backs seem a bit too potent, even interfering with the plot, and at one point, the characters have a divide despite several people clearly seeing the cause of the town's plight. It's a fun film, worth a watch, if just for McKenna or Paul Rudd. All the acting is good and fun, and a better film than 2016's Ghostbusters by far. Hope this film spawns more films with these characters.