It seems very strange, as the story tells about the divorced couple who are having a different experience. It may be strange when their family reunites for a wedding even though their marriage was not real.
What it desperately needed was more originality. I suppose Zackham thought that if he just got a great cast and sprinkled enough humor into it, then those would be enough to cover up all the flaws in the script. Unfortunately, he was very much mistaken.
Sarandon, Keaton and De Niro mesh beautifully, fully convincing as a trio of old friends and carting in lots of characterization that would be otherwise lacking in Zackham's rote screenplay.
Behold the unholy matrimony of hack-job romance and whack-job comedy. Witness the blindingly bleached marriage of house-porn and cocky Caucasian privilege. Suffer the union of former A-list stars and express-cashed paycheques.
Some scripts can be saved by a good cast that delivers the material with as much chutzpah as possible. And then there are some that are simply unsalvageably dreadful.
It's not the sheer predictability of the ensuing frolics that's hardest to take, or even the dismal attempts at humour ... but the sheer misery of watching actors you once respected demean themselves in such utterly worthless fodder.