Sightseers

Sightseers is a British horror comedy directed by Ben Wheatley and written by and starring Alice Lowe and Steve Oram, with additional material written by coeditor Amy Jump.

Chris Steve Oram is a caravan fan and aspiring writer who takes his girlfriend Tina Alice Lowe on a road trip, much to the chagrin of Tinas mother Eileen Davies, who has never forgiven Tina for the death of their dog Poppy. At their first stop, a tramway museum filmed at Crich Tramway Village, the home of the National Tramway Museum, Chris confronts a man Tony Way who is littering, and the man refuses to pick up his rubbish. When they get back to their car, Chris runs him over and kills him, which upsets the couple but they continue onward on their trip. Chris claims that the death was an accident, but his smirkvisible to the camera but not to Tinain the immediate aftermath makes it clear it was deliberate.At a caravan park, Chris manages to beat a couple to a good spot. They later meet the couple, Janice and Ian Monica Dolan and Jonathan Aris, the latter of whom is asserted to be an accomplished writer by Janice, something that makes Chris jealous. When Ian reveals that he is going for a walk the next morning, Chris follows him, hits him in the head with a rock and pushes him off the cliff. When they are about to leave, Tina spots Ians dog Banjo who bears a striking resemblance to the deceased dog Poppy. They take Banjo and drive off to their next stop, Chris calling the dog Banjo, and Tina calling the dog Poppy. ........

Source: Wikipedia