‘Legion’: Katie Aselton On Playing David Haller’s Caring Sister Amy

At a red carpet event for FX’s new series, “Legion,” Katie Aselton chats with Access Hollywood about her character, Amy Haller, the sister of Dan Stevens’ character, David Haller. Plus, what was it like working with Creator Noah Hawley? “Legion” premieres Feb. 8 at 10/9c on FX.