Takin' it easy! Jennifer Aniston and Justin Theroux enjoyed dinner with friends Courteney Cox and Jason Bateman and his wife at Nobu in Malibu Saturday night, just a day after their pal, uber-producer Joel Silver, was served with a lawsuit for the wrongful death of his personal assistant whose body was found washed up on the beach during Aniston and Theroux's 2015 Bora Bora honeymoon!

It's pretty dramatic -- read all the deets HERE. And it's super weird that this never came to light until the assistant's family filed suit against the mega-rich Silver. Someone DIED during their honeymoon! This sh*t doesn't happen ever day, people! Thank god ...

But last night Jen and Justin put their worries aside and enjoyed some sushi with pals. It's Silver's problem now ...