Ghostbusters: Afterlife (2021) review

Divorced Callie (Carrie Coon) takes her two kids Phoebe (Mckenna Grace) and Trevor (Finn Wolfhard) to Oklahoma to live in the house of their late grandfather Dr. Egon Spengler (the late Harold Ramis, brought back with CGI), who knew a demon named Gozer (Olivia Wilde) could threaten human existence if it wasn't kept in check.  It's only fitting that Jason take over a project his father Ivan started in the eighties and try to inject some energy and fun, but this doesn't have a single original idea in it and is all too comfortable cannibalizing the past (like making the the Stay-Puft Marshmallow Man tiny ... or having a modified version of Slimer eat metal and spit bullets).  It drags out Bill Murray, Dan Aykroyd, Ernie Hudson, Annie Potts etc. for glorified cameos, but both Grace and Paul Rudd (as a summer school teacher/seismologist who shows kids horror movies instead of bothering to teach them) are the only real reasons you should bother to watch it.