History Film / DueDate

* DoubleMeaningTitle: The Italian title, ''Parto Col Folle'' which means both 'I start my journey with the nutjob' and 'Giving Birth with the Nutjob' [[spoiler: which alludes to the ending]].

* AdultChild: Zach Galifianakis is in full Alan-from-''TheHangover'' mode with Ethan's character.

* WeCouldHaveAvoidedAllThis: Never mind that it was all Ethan's fault anyway, [[spoiler:Ethan later reveals he had Peter's wallet the whole time]].

* ComicallyMissingThePoint[=/=]0MathematiciansAnswer:

* HiddenHeartOfGold / JerkWithAHeartOfGold: Peter may seem incredibly mean-spirited at times, but he shows plenty of signs that he's actually a good guy, namely not ditching Ethan's father's ashes on the side of the road and comforting Ethan on more than one occasion as he tries to deal with the loss of his father.

* TheReasonYouSuckSpeech: "I despise who you are on a cellular level."

* CompletelyMissingThePoint / MathematiciansAnswer:

* DeadBabyComedy

* [[spoiler:WouldHurtAChild]]: Peter, fairly mildly. It's played for an odd mix of shock, laughs, and [[EstablishingCharacterMoment character development]].

* AmbiguouslyGay: Ethan, very, ''very'' much. In the Italian version he is even dubbed with a very Camp Gay voice.

* AmbiguouslyGay: Ethan, very, ''very'' much.

''Due Date'', starring RobertDowneyJr and Zach Galifianakis, is a comedy about two men trying to get to Hollywo... er, Los Angeles. Peter Highman (Downey) is a rather low-tempered man, due to the fact that his wife Sarah (Michelle Monaghan) is about to give birth and he is trying to get back to Los Angeles in time for it and figure out what to name his soon-coming daughter. He meets Ethan Tremblay (Galifianakis) and soon gets almost arrested twice, shot by a rubber bullet and put on a No-Fly list due to using the words "bomb" and "terrorist," all thanks to being near Ethan. To make up for it, Ethan gives Peter a lift because he is going to Hollywood to become an actor. Ethan also has an interview around the same time as Peter's wife. Making the trip more difficult is the fact that Ethan seems to have never grown up and wanting to go to the Grand Canyon, Peter's inability to relax and the fact that Ethan seems unable to rub two brain cells together.

!!The tropes present in this movie are:

* MinorInsultMeltdown: Steve to Ethan

* HoYay: It's heavily implied that Ethan is a homosexual.

''Due Date'', starring RobertDowneyJr and Zach Galifianakis, is a comedy about two men trying to get to Hollywo... er, Los Angeles. Peter Highman (Downey) is a rather low-tempered man, due to the fact that his wife Sarah (Michelle Monaghan) is about to give birth and he is trying to get back to Los Angeles in time for it and figure out what to name his soon-coming son. He meets Ethan Tremblay (Galifianakis) and soon gets almost arrested twice, shot by a rubber bullet and put on a No-Fly list due to using the words "bomb" and "terrorist," all thanks to being near Ethan. To make up for it, Ethan gives Peter a lift because he is going to Hollywood to become an actor. Ethan also has an interview around the same time as Peter's wife. Making the trip more difficult is the fact that Ethan seems to have never grown up and wanting to go to the Grand Canyon, Peter's inability to relax and the fact that Ethan seems unable to rub two brain cells together.

* [[BreakTheCutie Break The Dummy]]: After getting his arm broken, Peter absolutely snaps on Ethan and tears him a new one on so many levels. YourMileageMayVary on whether he deserved it or not.

* ParentalSubstitute: YourMileageMayVary, but Peter is significantly more mature than Ethan and often provides fatherly comfort for him during their trip, particularly in two scenes -- when Ethan accidentally drops the ashes on the carpet and breaks down, and when he convinces Ethan to spread his father's ashes [[spoiler:in the Grand Canyon]].

* YoungerThanTheyLook / OlderThanTheyLook: Ethan claims he's 23. [[spoiler: He later admits it's not true, but he doesn't say how old he is.]]

* RantInducingSlight: [[spoiler:After getting put on a no-fly list; being forced to travel with Ethan, the guy who got him put on the list, and trying without success to get money transferred from his very pregnant wife, Peter explodes at the Western Union employee. Said employee is a handicapped Iraq War veteran who trounces Peter.]]

* PlotHole: The film doesn't explain how Peter and Ethan got back into the United States driving a stolen Mexican cop car, and without Peter's ID.

* OnlySaneMan: Peter. Not only does nobody else seem to notice that there's something significantly wrong with Ethan, but almost everyone else that he encounters also seems to be a bit off-kilter, mentally.

* MoodWhiplash: Several times. The most jarring ones are when Peter challenges Ethan to act and he fails horribly twice until he asks him to play a football coach whose wife wants a divorce and Ethan ends up crying for real as it makes him think about his father; the second one is after Darryl accidentally makes coffee out of his father's remains and they recover the ashes from the coffee filter but Ethan drops them and ends up sobbing on the carpet while Peter comforts him. Also from the heartwarming scene of scattering Ethan's dad's ashes to [[spoiler: Peter beating Ethan up fro having his wallet.]]

* AmazingFuckingGrace: A version by Rod Stewart on the soundtrack.

* WhatHappenedToTheMouse: There seem to be a lot of signs that Peter's wife's been cheating on him with Darryl, but nothing ever comes of it.
** [[spoiler:More or less wrapped up in the penultimate scene; she hasn't.]]
* SpiritualSuccessor: To ''TheHangover'', from the same director, and to ''PlanesTrainsAndAutomobiles'' as both films feature an OddCouple that are traveling cross-country together.

* {{Expy}} / FollowTheLeader: Many reviews called it a mean-spirited version of ''PlanesTrainsAndAutomobiles''.