Now that we know Ali just might be alive on Pretty Little Liars, we very well could be seeing a lot more of actress Sasha Pieterse during the second half of Season 4. But PLL isn’t the only project that Sasha will be working on. The 17-year-old actress just booked a role in an upcoming Reese Witherspoon movie.

Variety reports that Sasha has joined the cast of Inherent Vice, a new Warner Brothers film from writer/director Paul Thomas Anderson that stars  Reese Witherspoon, along with fellow big Hollywood names like Joaquin Phoenix, Owen Wilson and Josh Brolin.

Inherent Vice is based on a 2009 Thomas Pynchon detective book of the same title, in which a drug-fueled detective named Larry “Doc” Sportello investigates the case of a kidnapped girl in Los Angeles during the 1960s. (Translation: We’re going to love the outfits.)

Production has already started for the film, and Sasha announced the casting news on Twitter late at night September 10. But instead of making a big deal of the announcement, Sasha just posted a link to an article, adding only a simple  “:).

Short and sweet. But that’s okay with us. This news is so big, with think it pretty much speaks for itself!

Source: Variety, Sasha Pieterse on Twitter

Beth Douglass is an Associate Editor at Wetpaint Entertainment. She's our resident Glee expert and loves celebrity kids. Follow her on Twitter and Google+!