***It is a long opera, but if you are going to make massive cuts, don't call it "The Gershwins' Porgy and Bess". Call it "Porgy and Bess" (abridged)" or something like that. Sondheim wrote an op-ed to the NY Times complaining about that last production on Broadway complaining about it. I also understand that the highlights might be enough for many folks, since it is indeed a very long evening as written.***
Actually, part of Sondheim's complaint was that "The Gershwins'" had been added to the title of the work quite a few years before the Paulus production. He strongly objected to that, mostly because he felt it gave short shrift to DuBose (and Dorothy) Heyward, who wrote the vast majority of the libretto, while exaggerating the contribution of Ira Gershwin, who in the case of this particular work wrote only a small percentage of the lyrics.