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."
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.
"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.
Transformers: The Last Knight opens June 23, 2017.