EXCLUSIVE: Mark Wahlberg Shares 'Transformers: The Last Knight' Travel Gear

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Transformers: The Last Knight's overseas locations means the cast and crew often have to hit the road, and ET got a look at Mark Wahlberg's special travel gear during a trip to the set.

"I've got my workout equipment," Wahlberg showed ET. "I've got my rotisserie, my hot plate … in the morning, I've got my clubs. I got some tuna from back home."

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Co-star Josh Duhamel warned us that Wahlberg has an intense schedule that starts with a 3:30 a.m. workout, and Wahlberg explained the need for his rigorous regimen.

"I put on a lot of weight," Wahlberg said. "[Director] Michael [Bay] saw me and freaked out. I promised him I'd get in good shape, so I started training early. I get it all in and then I come to work for 12 hours."

Despite the early workouts and long work days, life on the road has come with some perks for the Oscar-nominated actor. The trip to Europe has afforded the father of four the chance to spend some quality time with his family.

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"We went to Buckingham Palace. Princess Eugenie gave us a tour," Wahlberg shared. "We went to France. I took the family to the Eiffel Tower. It was cool."

Even with all the fun that comes with visiting new places, it appears there can be too much of a good thing.

"The only thing better than that is finishing this movie -- it's a five-month shoot -- and taking my wife to dinner ... take my kids to school," Wahlberg said.

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Transformers: The Last Knight opens June 23, 2017.