'The Hangover' Stars Reveal Five Behind-The-Scenes Secrets

Check out these little-known details, from Heather Graham's deleted scene to Zach Galifianakis' shocking photo.

LAS VEGAS — It's the funniest movie of the year — and the past weekend's surprise box-office champion. It's "The Hangover," a film about three friends who wake up to discover that they've forgotten all about their wild bachelor party the night before.

Now, MTV wants to refresh your memory with five "Hangover" secrets straight from the film's stars. Spoilers are ahead — but if you've already seen the smash film, read on for never-before-revealed details about profane baby acts, Heather Graham's deleted scene and that shocking photo at the end of the film.

Vegas Wife at the Wedding

In the finished movie, Ed Helms' Stu confronts his girlfriend, Melissa, at Doug's wedding. Originally, Stu's stripper wife was going to travel with the boys back to L.A. "In the original draft, I was supposed to go to the wedding with them," revealed Heather Graham, who plays Jade. "But then, some of the Warner Bros. people were like, 'Oh, is this wrong if he brings a stripper to the wedding? It seems really rude to his girlfriend.' They wanted to have him go there and [confront Melissa] without bringing his stripper girlfriend along."

Lewd Baby

In one of the film's funniest moments, Zach Galifianakis' Alan amuses the other guys by moving the baby's hand back and forth, pretending he's pleasuring himself. As twisted as that may seem, Galifianakis insisted that he didn't intend to do it with the real baby. "We had a stand-in baby doll that looks like a real baby. ... I took the arm and went and did the motion," he remembered. "Todd [Phillips] the director saw it, and then he goes, 'We've got to put that in the movie,' and I'm like, 'No, we don't have to put that in the movie,' and then he went and asked the [real baby's] mom." Added the comedian: "I think a lot of infants that go to the movie are going to tell other infants, 'Don't go to Vegas!' "

Up on the Roof

Several of the film's key scenes take place on the roof of Caesars Palace. But can real people get up there that easily? "They let us up on the roof to shoot. To get up on the roof of Caesars is virtually impossible," Phillips said. "I'd love to say the movie is very real-feeling, and everything in the movie is real, and I love comedies that are real — but in reality, you could never get on the roof at Caesars. We had to go through 42 locked doors and 32 key cards just to get past. There is no real way to get on the roof at Caesars [without security letting you up there]."

Jade's Backstory

A pro at playing dirty girls with hearts of gold, Heather Graham developed intricate, offscreen details to bring some originality to her exotic dancer. "I made up this whole backstory for my character," Graham said. "I was a hippie stripper. I was very new age-ish. The stripping was about the spirituality, and [Jade] was trying to make sex spiritual. You don't see it, but I had a whole story."

Zach's Dirty Picture

During the film's end credits, photos are shown depicting the boys' wild weekend. Eagle-eyed observers might notice one that graphically depicts Zach Galifianakis getting a sexual favor in an elevator from an older lady. Ed Helms even revealed the identity of Zach's co-star in the pic: "That's a cameo by Susan Boyle," the "Office" star joked. "I'm amazed that she got talked into it." While it's hard to get a straight answer out of the film's stars, director Todd Phillips was amazed that the X-rated shot snuck past the censors. "Those pictures were shot during the time we were in Vegas," Phillips said. "I would just go out with the guys with my regular camera with the flash and take these pictures. Everything that we photographed we went and did." Galifianakis added: "I got talked into it. I offered Todd's assistant $1,000 if he could convince Todd to not have that in the movie."

Check out everything we've got on "The Hangover."

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