Published: May 24, 2011 11:28 PM EDT
Updated: May 24, 2011 8:25 PM EDT

NAPLES, Fla. - Inside the Cruise Naples office located in Tin City, Captain Lance Julian and his son, Captain Harry Julian, do more than just book charters and cruises. These two scout, set-up, and manage some of the most memorable movies scenes made on the water, and their latest is one you'll likely know.

The Hangover II! Filmed in Bangkok, Thailand, Captain Lance spent three months with Bradley Cooper, Zach Galifianakis, and the rest of the crew.

"There's four major scenes, the big one is the final," the captain tells us.

He's been sworn to secrecy on the big finale, which he had a large part in; but, shares some of the behind the scenes stories on how it was all done on one of the busiest waterways in the world. All too much for one star who needed a stunt driver.

"Somebody was actually driving it, running it, the speed, had control, and Zach was standing up there looking damn fine," Lance laughs at the thought of Galifianakis' scene in the movie.

Captain Lance got lots of laughs from the cast both on and off the set. He specifically recalls a wrap party incident, "Zach rolls up as Santa Claus, fully catered out, the whole beard. You know Zach just the way he walks, and it was sweltering!"

But, he couldn't let laughs get in the way of work, "I have to call the safety shots, and there were a couple times where I just said stop, shut down."

For a duo that's worked on Bond movies, the Titanic, and Survivor, this one ranks at the top.

"This was just pure, it was pure fun," Lance says.

Now, they only need to find a theater that won't be sold out Thursday to watch it.