Dreamland (2007)

Synopsis: A young couple traveling a lonely stretch of Las Vegas highway discover that they're not alone on the road in director James Lay's dark sci-fi thriller. Megan and Dylan were somewhere between Vegas and Reno when they decided to stop at a roadside restaurant to fill their empty stomachs and rest their weary eyes. Upon discovering that the notorious Area 51 is just a few short miles away, the curious travelers quickly get back behind the wheel in hopes that the shroud of midnight will give them the opportunity to get a glimpse of the top-secret military instillation. Strange things have been known to occur on this radiation-poisoned stretch road that runs through a former nuclear testing ground, though, and soon after an unsettling speech by Adolf Hitler takes over the couple's car radio, the entire vehicle suddenly dies. When a mysterious visitor from another time seems to materialize in the rear window before their very eyes, Megan and Dylan flee the car only to find that, in the unforgiving darkness of the desert, their strange journey has just begin.     Source: RottenTomatoes.com