To be fair to the hapless heroines of “Fort Tilden,” it actually is a pain to get to that remote Rockaway beach. But Brooklynites Harper (Bridey Elliott) and Allie (Clare McNulty) make the trip exponentially more tortuous in this dark comedy — they’re the ditziest, most solipsistic protagonists I’ve seen outside of a Neil LaBute project.

Having invited themselves along on a beach outing with potential romantic conquests, Allie and Harper embark on an epic quest to get there, including calling in sick to a Peace Corps meeting, abandoning a neighbor’s borrowed bike, nearly running over an infant and putting orphaned kittens in a trash can for ill-conceived safekeeping.

Writers/directors Sarah-Violet Bliss and Charles Rogers keep things moving at a brisk clip in this amusingly ill-fated road trip, and they have game leading ladies in Elliott (daughter of Chris) and McNulty. If I were a millennial, though, I’d chafe at having cultural representatives like these whiny, entitled cretins, who make the characters on “Girls” look positively circumspect.