In Life of the Party, Melissa McCarthy plays the doting mother of a college senior who, after being dumped by her husband of 20-plus years, pursues her dream of an archeology degree by enrolling in her daughter's university. I consequently expected 90-odd minutes of campus slapstick as well-meaning, accident-prone, profoundly uncool Mom mortifies her kid in classrooms and at Greek mixers and whatnot – just like the trailers indicated, and just like in the 1986 Rodney Dangerfield hit Back to School. But amazingly, that's not what we get. It turns out that instead of comedic stakes involving a child's embarrassment, there aren't any stakes at all.