Elizabeth Olsen, Callum Turner and Miles Teller star in 'Eternity.' (A24)Picture this: You die and get to choose how you want to spend forever - which includes your one true love. Sounds pretty sweet, right? Unfortunately, in the case of the new A24 movie Eternity, which dropped its first trailer on Tuesday, the sweet hereafter comes with a catch: You have two dead husbands, and they're both vying for a spot next to you in the afterlife. Eep!Eternity stars Elizabeth Olsen as Joan, the woman in question, who dies shortly after the death of her second husband, Larry, played by Miles Teller.