Hot Fuzz and Shaun of the Dead duo Simon Pegg and Nick Frost reunite for this outlandish adventure as two sci-fi geeks whose comic pilgrimage takes them to America's UFO heartland. There, they bump into a potty-mouthed alien (voiced by Seth Rogen) who takes them on an insane road trip that alters their universe forever. It's a treasure trove of sci-fi culture references and slapstick amiability that sees our heroes fleeing the FBI, hillbillies and sinister government spooks.
As far as comedy teams go, it's up there with the best of them.
Having both shot up and cricket bat slapped two of Hollywood's most precious genres (the cop buddy and zombie flick respectively) into geeky submission with Shaun of the Dead and Hot Fuzz, it seemed the dynamite trio of Simon Pegg, Nick Frost and director Edgar Wright could do no wrong.
And then they went their separate ways. So while Wright's gone onto enviable critical success with the geek nirvana of Scott Pilgrim vs. the World, Pegg and Frost embark on a road trip movie that ticks every fan's wishlist - a loveable bromance, pop culture gags aplenty and a stellar comedic support cast.
Which is why it's odd that Paul doesn't quite live up to their collective CV to date.
Unsurprisingly, the two play a pair of geeky best buds on a bromantic holiday of a lifetime. What appears to be a simple road trip across America on the search for UFO hotspots quicky spirals into something far more bonkers when the pair bump into alien-on-the-run Paul (voiced by Seth Rogen).
Having escaped from Area 51, he hitches a ride on the boys' RV and they're soon being chased by FBI agents, crazed hillbillies and a mysterious government chief all intent on dissecting the expletive-happy extraterrestrial before he manages to meet his ride off the planet.