The indie romantic dramedy Save the Date — new to DVD, Blu-ray and digital this week — starts in awfully familiar territory.

Twenty-something Sarah (Lizzy Caplan) is a bookstore clerk and aspiring artist who’s about to have her sketches premiere in a small gallery. Her boyfriend Kevin (Geoffrey Arend, Body of Proof) is the lead singer of an appropriately hip indie band. They’ve just moved in together.

Meanwhile, Sarah’s older sister Beth (Alison Brie, Mad Men) is planning her own wedding to fiance Andrew (Martin Starr, Adventureland), drummer for said indie band. Both couples are on the verge of making major life commitments. They process their feelings by way of late-night conversations in studio lofts with hardwood floors and stacks of vinyl in plastic crates. There’s a lot of hand-wringing about The Future and several variations on the phrase: “I’m about to spend the rest of my life with this person!”

I’ve developed a low pain threshold, over the years, for indie films about attractive big city creative types and their romantic problems. I understand that you’re supposed to write about what you know, but c’mon emerging Los Angeles screenwriters. Can’t you stretch just a little?

All that said, Save the Date does what it does about as well as it can be done. The film’s greatest strength is the lead performance from Lizzy Caplan, the future movie star whose past credits include Cloverfield, Hot Tub Time Machine and the late, lamented Freaks and Geeks.