STEVE CARRELL has done some solid work in the “dark comedy” category (“Little Miss Sunshine” comes to mind), as well as had some serious misses (“Dan In Real Life,” anyone?). In “Seeking a Friend for the End of the World,” he gives it another go, along with co-star Keira Knightley. As an asteroid speeds toward the earth and everyone is given three weeks to live, a man (Carell) agrees to help his neighbor (Knightley) see her family one last time if she’ll take him to find his long-lost first love. Darkly funny hijinks ensue. The trailer is good (and an excellent use of the Talking Heads’ “Road to Nowhere”), so if the director manages to NOT have the world be saved at the last minute by the sheer power of the characters realizing that they belonged together all along, we have high expectations for the film itself. In terms of the box office, it’s opening against “Brave,” so we’re not expecting anything phenomenal, but it could be solid.