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Left to right: Dwayne 'The Rock' Johnson in 'Get Smart' (2008) and on the set of 'Pain & Gain'. Images from Everett/FameFlynet

Mark Wahlberg and Dwayne "The Rock" Johnson add immensity to the term "movie buff" as their new action-crime-comedy, "Pain & Gain," hits theaters this weekend.

In the Michael Bay film, Wahlberg and Johnson play body builders who hatch a meatheaded plan to extort money from rich guys in early 90s Miami Beach. When these American dreamers turn out to be nightmarish thugs, all sorts of Bayhem ensues.

We all know Wahlberg and The Rock will fill up the big screen, but here's five facts about "Pain & Gain" that you may not know.

1. If you've ever seen The Rock throw "The People's Elbow," you may have thought he could simply walk off the wrestling mat and be ready to play a body builder on set. But that's not the case. According to USA Today, besides upping his workout regime, the 6'4" former wrestler put on "12 to 15 pounds of muscle" by going on a crazy calorie binge that amounted to seven full meals a day, topping out at over 250 pounds.. Here's how he divvied up his daily allowance of "good complex carbs and protein/fat sources."
•Breakfast: 10-ounce beef fillet, 2 cups of oatmeal, two-egg omelet.

•Brunch: 8 ounces of cod, 12 ounces of sweet potatoes, 1 cup of steamed veggies.

•Half lunch: 8 ounces of chicken (we're assuming not fried), 2 cups of white rice, 1 cup of veggies.

•Lunch: 8 more ounces of cod, 2 cups of rice, 1 cup of veggies.

•Lunner (or maybe dunch): 8 ounces of steak, 12 ounces of baked potato fries, a salad.

•Dinner: 10 more ounces of cod (really, can you ever get enough cod?) 2 more cups of rice, another salad.

•Late-night snack: 30 grams of casein protein powder, 10-egg-white omelet (yes, 10!), 1 cup of veggies, a tablespoon of Omega-3 to wash it down.

2. After going 150 days on that diet without cheating, The Rock broke his fast in the grandest of fashions. According to Muscle & Strength, Johnson went on a three round eating bender that consisted of 12 pancakes, followed by four "double dough pepperoni pizzas," followed by 21 brownies and a jug of milk. Apparently The Rock isn't much into moderation.
3. Wahlberg did his own share of heavy eating to pack on muscle for the role. "I was eating 10 meals a day and drinking mass gainers," Wahlberg told E Online. "It was a lot of work. A lot of getting up at 2 in the morning to eat another meal and I was still full from the meal at 10 o'clock." The hard work paid off though, as according to Muscle & Strength, Wahlberg now benches 335 pounds. Interestingly, the same article also notes that Wahlberg doesn't believe in direct ab workouts and achieves his famous six-pack through light ab work only.
4. With "Transformers," "Bad Boys," and "Armageddon," director Michael Bay has secured a reputation for huge movie making. According to Box Office Mojo, his last three pictures -- "Transformers" 1, 2, and 3 -- had a combined budget of $545 million. With "Pain & Gain," Bay has dialed it back a bit; the film has a relatively paltry budget of $25 million. To cut some production costs, Bay filmed portions of the movie at his own Miami mansion. You can see some of Bay's home in the trailer above.

5. "Pain & Gain," which is based on the true story of the Sun Gym Gang, is being marketed as a dark comedy. But many of those affected by the gang's real life criminal actions don't think it's a laughing matter. One of the gang's victims, Marc Schiller (portrayed by Tony Shalhoub) finds the film's comedic tone particularly disturbing. "I was significantly tortured: tasered, burned, beatings, guns to the head, Russian roulette... there's a whole list of things. And then obviously at the end they tried to kill me. And it wasn't that funny when they tried to kill me," Schiller told the Huffington Post.