Aldous Snow (Russell Brand) is the “white Christ from outer Space.”A sex God, a rock star, you name it.  A cliché of every tabloid cover. On the ten year anniversary of his band, a junior record exec, Aaron (Jonah Hill) is sent by his satanic boss, Sergio (Sean P. Diddy Combs) to escort him from London to NY for the Today show before heading him out to LA to the Greek theatre.  This is fabulous news for Aaron whose boring lifestyle with resident doctor (Mad Men’s Elisabeth Moss) needs an adrenaline rush and whose boss (Combs is superb as a nutjob) is overly demanding. But the seemingly simple feat turns out to be a ticking clock of nightmares as Aldous wants to party like a rock star all along the way.  And like all recent bromances, this one has to end up in Vegas with a Hangover-esque feel to its story. That said, all in all a smart, raunchy film with witty dialog and enthusiastic performances, it sparks with laugh-out-loud in the first ¾ before fizzling into semi-ridiculous in the final ¼. Somewhere there’s an underlying message of live life in the moment and don’t be so tight wound, but even that message gets lost in the booze, heroine and three-ways.   Two and a half tiaras