Like many Millennials, I first encountered O’Hara in 1990’s Home Alone. The blockbuster holiday film followed a young boy, Kevin (played by Macaulay Culkin), who is accidentally left behind by his family when they jet off to Paris for Christmas vacation. O’Hara played Kate McCallister, Kevin’s mother, and at first glance, the role appears serious, if not downright unsympathetic: Kate is so harried that she fails to realize she has abandoned her 8-year-old until she’s on the plane to Europe. As she tries to make it back to Kevin, she encounters eccentric traveling companions, leaving her the straight woman trapped in a nightmare of her own making.