Justin Timberlake and Olivia Wilde have been rumored to be dating, but in their new sci-fi flick, 'In Time,' the R&B singer actually plays the 'House' star's son.

While this may raise eyebrows, the movie is set in a futuristic world where the aging process stops at age 25. But, while everyone looks young and wild and free, time is actually the world's most coveted commodity, being bought and sold to stay forever young. Those who can't afford it die by the clock.

The impossibly good-looking Timberlake and Wilde are at the bottom of the socio-economic system, and time is running out for the mother. JT's character is given 100 years by a man who no longer wants to live, and he soon sets out on a quest to fight for what's right.

This year, the singer has starred in two comedies, including 'Bad Teacher' with ex Cameron Diaz, and 'Friends With Benefits' alongside Mila Kunis. He'll show off his dramatic skills in the Andrew Niccol sci-fi thriller when it hits theaters on Oct. 28.

'In Time' marks Timberlake's third feature film release in 2011, but the actor says he has "not retired from music." When fans will hear new songs from the 'SexyBack' singer remains to be seen, but JT insists that his recording career is still in play.

Watch Justin Timberlake and Olivia Wilde in the Trailer for 'In Time'