Fans of the first film know what to expect from the Zac Efron and Seth Rogen comedy duo, but can they keep the laughs going by introducing some new blood? Instead of a fraternity being the root of the problem, “Neighbors 2” flips the switch bringing young women into the mix with a newly formed sorority. Chloe Moretz leads this group of girls in rebelling against the sorority rule of no partying by moving in next door to Mac (Rogen) and Kelly (Rose Byrne) for the freedom to party nonstop. But while the parties and cast may be bigger, was “Neighbors 2: Sorority Rising” a worthy successor?