The first half of this Seth Rogen sequel is as funny and snappy as the first movie, but the movie loses its way a bit by the time credits roll. Still, if you are looking at laughs per dollar, Rogen and Zac Efron deliver your money’s worth.

The spin this time out has a sorority led by Shelby (Chloe Grace Moretz) moving in next door to the Radners (Rogen and Rose Byrne). Shelby is determined to party like a frat does, and this leads to a semi-depressed Teddy (Efron) coming on as a mentor. This restarts Teddy’s war with the Radners, which is bad timing because their house is in escrow. It’s during this stage when the film is at its nastiest best. When a booted Teddy joins forces with the Radners to destroy the sorority, things get a little misguided.

The film has some of the funniest dialogue of 2016 (“Sometimes you have to suck a bunch of dicks to find out you don’t like sucking dicks”), and I’m always down for Rogen. Byrne is an undervalued comic actress, and Moretz fits right into the stoner mode. Efron gets the biggest laughs in the movie, even when it starts to get a little too busy. A garage gag involving those ever-pesky airbags is killer funny, as is another visit with the Dean (Lisa Kudrow).

As sequels go, this isn’t a great one, but it’s a worthy installment.