A new R-rated spot for director Jason Reitman’s Young Adult has gone online. The film stars Charlize Theron as an alcoholic young adult fiction novelist who returns to her hometown in order to pursue her now-married high school boyfriend. This clips proves that Theron’s character is a terrible, terrible human being. It also proves that it’s incredibly fun to watch Theron marvel in the nastiness. I’m a huge fan of Reitman’s work and I’ve been looking forward to this one for a while. The film’s been turning heads in the awards communities (especially Theron and co-star Patton Oswalt’s performances), and I can’t wait to check out this decidedly dark character piece. The fact that Reitman’s Juno scribe Diablo Cody wrote the script doesn’t hurt either.Hit the jump to check out the spot. The film also stars Patrick Wilson and Elizabeth Reaser. Young Adult opens in limited release on December 9th and expands nationwide a week later.Here’s the official synopsis for Young Adult:

Academy Award(R) winner Charlize Theron plays Mavis Gary, a writer of teen literature who returns to her small hometown to relive her glory days and attempt to reclaim her happily married high school sweetheart (Patrick Wilson). When returning home proves more difficult than she thought, Mavis forms an unusual bond with a former classmate (Patton Oswalt) who hasn’t quite gotten over high school, either.