Poised star of Dior's newly released campaign images, actress, red-carpet buffoon and all-round gift to the gif community: Jennifer Lawrence is ace. We know this! And we also know she has two movies coming soon, both of which had official trailers released this week: the depression-era romantic bad-luck fest, Serena (out 24 October) and the latest instalment in the kickass Hunger Games franchise, Mockingjay Part 1 (out 21 November). We're excited about both, but which are you going to see first? Let's check out what we know so far…