The Hangover Movie Facts, Easter Eggs and hidden details

No effects or prosthetics were used for Ed Helm's missing tooth in 'The Hangover' (2009). Growing up, one of his adult incisors never grew in so he had a fake one he would remove whenever he shot a scene.

Ed Helms removed a prosthetic tooth for the movie. His adult tooth never came in.

Anybody ever notice in The Hangover (2009) that Stu is the one that opened the door that hit the baby but then says to Alan, "You just nailed the baby!"

During the Blackjack Scene in The Hangover(2009), the Greek letters "Phi Alpha" are displayed prominently. "Phi Alpha" is the secret motto of the college fraternity Sigma Alpha Epsilon.

A strip club can be seen behind the wedding chapel, foreshadowing Stu's marriage to a stripper

Ed Helms is actually missing a tooth. He got a permanent implant when he was a teenager, so his dentist removed it for filming.

When the officer asks for a volunteer to taser phil, the cop in the background raises his hand

Phil says that Doug, 'probably went to the pool to get something to eat' when he's gone missing. In the sequel, Doug's having breakfast by the pool.

Just before the big meet up, you see the reflection of The Wolfpack's car in Mr. Chows sunglasses. A homage to Casino, where Robert De Niro also has his meet up and also talks about his uncertainty going into the Las Vegas dessert.

There's a scene right before they meet Carlos' mom where Alan says "It's got, uh, Ted Danson and Magnum P.I. And that Jewish actor." The film he's talking about is 3 Men and a Baby, obviously referencing the characters' current circumstances.

Alan accidentally drugged the group with marshmallows meant for Teddy. Earlier on the beach, Phil tossed the bags over and Alan spent the next few seconds figuring out which bag was drugged.

There is a quick cut that shows the character winning on a $20,000 bet, while in the background, is a bet of $30. There is no table in Las Vegas that has that wide of a bet spread.

the liquor store flashback scene in The Hangover 3 (2013), Alan can be seen purchasing a bottle of Jager and a bag of skittles which is a reference to The Hangover (2009) when Alan yells at Chow for stomping on his satchel that had skittles in it.

One of the photos on Teddy's phone shown very briefly during the subtitles has striking resemblance to the execution of Vi?t C?ng member Nguy?n V?n L?m.

The crew at the airport see the departure time for Bangkok. When they take off, the film shows a four engine aircraft. When they land, it shows a two engine. They clearly had a layover in another country, and the departure for Bangkok doesn't make sense.