The Silver Linings Playbook actress admitted she was suffering from the flu on Golden Globes weekend and is still under the weather. Today, Jennifer's Silver Linings costar Jacki Weaver accepted the Australian Academy of Cinema and Television Arts' best actress award in LA on Jennifer's behalf. "Poor Jen is really sick," Jacki said as she took the podium. "She really is sick. She has pneumonia." Jennifer, who already picked up a Globes honor for her role in Silver Linings, is also up for a SAG Award this weekend. No word yet on whether she'll be able to attend the show on Sunday, but we're sending Jennifer our wishes for a speedy recovery!