Due Date is a comedy film directed by Todd Phillips and starring Robert Downey Jr. as Peter Highman and Zach Galifianakis as Ethan Tremblay, the aspiring actor who gets Peter into a series of unfortunate and dangerous situations.
Peter is an uptight architect who is trying to get home to Los Angeles on time for his wife's due date, but his plans are thrown off course when he meets Ethan at the airport. Ethan is a weird, socially awkward man who offers to give Peter a ride when his flight is cancelled due to weather.
Despite Peter's initial reluctance, he decides to accept Ethan's offer and the two set off on a road trip across the country. However, things quickly go wrong when Ethan accidentally gets them on the "no-fly" list, leading to a series of mishaps and misadventures as they try to make their way to LA on time.
Along the way, they encounter a drug-dealing biker gang, deal with the aftermath of a car accident, and get involved in a high-speed chase with the police. Meanwhile, Peter's wife Sarah (played by Michelle Monaghan) is getting increasingly frustrated with his lack of communication and failure to make it home.
As the five-day deadline approaches, Peter and Ethan must push through their differences and work together to get home in time for the birth of Peter's first child. Despite the obstacles they face, they eventually make it to LA and Ethan even manages to land a small acting role in a Hollywood movie.
Overall, Due Date is a hilarious and entertaining buddy comedy that showcases the comedic talents of Downey Jr. and Galifianakis. With its fast-paced action, witty dialogue, and great performances, it is sure to leave viewers laughing and entertained.