Ben Affleck and Jennifer Lopez got together for lunch in Beverly Hills

Ben Affleck and Jennifer Lopez are apparently trying to keep their relationship civil while their divorce is pending ... having lunch with their kids - and not looking particularly thrilled about it.

The estranged megastars went to eat at the Beverly Hills Hotel ... walking in together after their kids ran ahead, ready to get fed.

There was absolutely no closeness between Ben and Jen - not even the slightest touch. In fact, if we're being honest, it seemed pretty chill between the two.

The couple seemed frustrated with being there at times ... with Ben raising his hands and getting close to Lopez's face during their walk - body language that suggested he wasn't thrilled with his future ex-wife. | BGNES