Due Date is a funny movie. Though the plot is ridiculous and parts are implausible, it's still a hilarious journey. Todd Philips is great at making funny movies, though they often don’t have the same storylines which drive Judd Apatow’s movie like Knocked Up, Philips’ films are still funny.
Due Date is built from the same frame as Todd Philips’ pre-The Hangover films. It's sort of Road Trip meets The Hangover. It has similar comedy and little plot elements, like his other films. Zach Galifianakis, some other side actors and some of the music all reprise their role from The Hangover. Yeah, The Hangover was incredible, but having the same cameos and music in another movie sort of ruin the experience.
The story follows Peter Highman (Robert Downey Jr.), an architect on a cross-nation trip to make it to his child's birth in Los Angeles. Unfortunately his trip is disrupted by the childish slob Ethan (Galifianakis). After a series of events at the Atlanta airport Peter is put on a no-fly list and loses his wallet, complete with his ID and money. He can’t even rent a car as he has no identification. His last hope is to drive with Ethan across the country.
Over the next three days of their journey to LA, they encounter a drug dealer and an angered Mexican border guard as well as the pair getting beaten up, shot at and losing all their money. The journey is pretty pointless and the story doesn't make you feel strongly about any of the characters, even though it could if it wanted to. Despite any problems, this movie is really funny.
The acting is good. Robert Downey Jr. is better than this movie; he does seem to be the only one taking his role seriously. Zach Galifianakis is naturally funny, but he is always the same dumb yet ‘innocent’ character and in Due Date he tries a serious scene, which doesn't work for him.
On a scale of recent comedies, Due Date is better than Get Him to the Greek, but not as good as The Hangover. It is full of laughs from beginning to end, but the story is poor enough that it ruins the movie a little bit. Due Date is definitely worth seeing if you want a good laugh. Like I said, it’s really funny, but it is not a worthy successor to The Hangover.