4. She starred as Iris in Hot Tub Time Machine (2010).

In Hot Tub Time Machine, Lyndsy stars as Jenny, the girl who dumped John Cusack's character back in 1987 and for whom he goes back in time to dump first. Does anyone else find it strange when an actress born in '87 plays a teen in '87? Or that a dude who presently has a miserable life would go back in time to dump a girl who, despite the toxins of her hair spray on her teased head, was probably the best thing that could've happened to him?