25 of the Saddest Movies on Netflix, From "Marriage Story" to "Irreplaceable You"

In this incredibly dark flick, Abbi Jacobson stars as a burdened big sister who spends a night driving around LA with her heroin-addicted brother (played by Dave Franco) and his 2-year-old daughter. Oh, yeah, and she's also trying to make it back in time for her boyfriend's surprise birthday party, where her friends and family are anxiously awaiting her arrival.

Watch "6 Balloons" on Netflix.