Many people were shocked when they saw Zach Galifianakis' weight loss because he really looked like a new man. I'm pretty sure you won't recognize him even if he tells you that he was the star of "The Hangover". The 45-year old actor stars as the crazy and wild Alan Garner in the comedy trilogy. I don't think his new look would still fit his role if ever they decide to do another sequel.

It's quite surprising for Zach to suddenly focus on losing weight because his potbelly and scruffy image complimented his sense of humor. Is he trying to switch from comedies to more serious roles? The former SNL host was recently seen during the premiere of his new movie "Birdman".

The black comedy is headlined by Edward Norton, Michael Keaton, and Emma Stone. You can see a thinner Zach Galifianakis in the "Birdman" trailer below:

During an interview with E! News, Zach Galifianakis made a joke about his weight loss and talked about his new movie. When asked about his slimmer body, the actor said: "I'm dying." He also revealed that he is wearing a ladies size 50 suit jacket. Wow! I'm sure some women out there wish they can wear that size.

The North Carolina native also talked about his character in "Birdman". Zach said, "The script kind of called for a more kind of tame person, as opposed to the things maybe that I have played in the past." He added, "It's a different type of movie...with the tone of the movie, you kind of want to change the tone of your acting. It was challenging because it was new."

A new film calls for a new man, right? However, the movie isn't the real reason behind Zach Galifianakis' weight loss. He revealed the reason during an interview with Conan O'Brien last year. The actor said, "I stopped drinking and I just kind of put the weight off...I was having a lot of vodka with sausage...delicious but bad for you."

Zach explained, "I was getting into too much trouble with the drinking, so I just kind of stopped." That's good to know and we are really proud of Zach Galifianakis' amazing weight loss.