You've got to be working out these days, especially if you're looking to make it in Hollywood. Fitness is a big deal, and these celebs, in particular, have taken it upon themselves to work that extra bit harder to get to where they are physically. Let's take a look at a few of the most ripped stars in the movie business, today.

DWAYNE JOHNSON

Dwayne Johnson - aka The Rock - is as big as an effing house lately. Here he is chasing after some poor unfortunate chap in Pain & Gain. Those upper traps are just ridiculous.

JASON STATHAM

Statham is fighting fit, no doubt. This is Bruce Lee level of rippage, though, as he bates the heads off lads in The Transporter 3.

JESSICA BIEL

Biel is a self confessed exercise fanatic. It shows, Jessica is one strong cookie.

RYAN GOSLING

The Gos is not shy of whipping off the shirt in movies. This shot from A Place Beyond The Pines shows us that he's no stranger to the gym.

SCARLETT JOHANSSON

Johansson buffed up for her role in the Avengers back in 2012.

RYAN REYNOLDS

People started taking notice of Reynolds' physique following his role in Blade Trinity (seen below). Consistently one of the most ripped men in the buisiness.

RONDA ROUSEY

The UFC's Women's Bantamweight Champion, Ronda Rousey, has yet to hit the silver screen but expect to see a lot more of her in the very near future, as she takes up roles in this years' upcoming Expendables 3, and Fast and Furious 7 due in 2015. She's as hard as nails.

CHRIS EVANS

Evans got in serious shape for his role as Captain America. Some men were born to bench, I guess.