Warner Bros. has released a brand new trailer and a set of five posters for the forthcoming “buddy” road-trip comedy Due Date, starring odd pair Robert Downey Jr. and Zach Galifianakis.

Due Date comes to us courtesy of director and co-writer Todd Phillips, director of the surprise hit The Hangover. That movie took a cliched plot (bunch of guys getting wild in Vegas) and managed to make it truly refreshing and funny.

Hopefully the same can be done with Due Date, which also has a rather clichéd premise – i.e. ordinary guy forced to take a road trip with a strange, quirky and often annoying individual. This new trailer for the film makes it look just as funny as the previous trailer. Check out the new Due Date trailer below:

“Dad… you were like a father to me.”

It may just be clever advertising, but if the movie is as funny as it looks and delivers even more great quotable lines than are shown in the trailers (quotability is a mark of all great comedies), then we may very well have a new Hangover on our hands. Truly funny comedies are few and far between these days, but hopefully Phillips can deliver another one with his first film since The Hangover.

Along with the trailer, we also have five new Due Date posters for your viewing pleasure:

Alongside Downey Jr. and Galifianakis, Due Date co-stars Jamie Foxx, Michelle Monaghan, Juliette Lewis, Danny McBride, RZA and Alan Arkin. The great cast and simple fact that this film looks genuinely hilarious puts it very much of my 2010 Fall Movie “must-see” list.

Due Date arrives in theaters on November 5th, 2010.

Sources: Youtube and Apple