Graham and Clive are two likeable English nerds who, after a visit to geek-Mecca Comic Con, take a road trip to America's infamous UFO hotspots. En route they encounter and hide Paul, a real, live "grey" alien, who's on the run from the US government, who've been hiding him for 50 years. With the FBI in hot pursuit, Graham and Clive's road trip becomes a race against time to get Paul to the rendezvous so his people can take him home.
There's a lot to like about Paul. The gags are numerous and funny, and while there's nothing particularly new or unpredictable here, it's all pulled off with such charm and energy that you can forgive the film its faults. Seth Rogen is great as the intergalactic stoner Paul, and Kristen Wiig is also good value as the Christian who discovers the joys of pot and swearing. And of course, Pegg and Frost do their usual schtick; and we love them for it.
It's nice to imagine that 50 years from now, people will probably talk fondly of the handful of good-hearted bromance/buddy films starring Pegg and Frost, and even though Paul lacks the darkness and manic intensity of the best of them (Shaun of the Dead, Hot Fuzz) it's still a trip worth taking.