At the country pub when Bella is talking to Mr Brown before he drives away: Bella's shadow on the car shows that the lighting is from the left but in the next shot as Mr Brown drives away the natural shadows are in the opposite direction.
At the country pub: the litter bin in which the gun is hidden has a lot of foliage behind it but when Bella picks up the gun and holds it the foliage has disappeared.
When Bella and her friends leave the restaurant, the telephone number on the canopy starts with 01, showing that this clip was filmed in London, not Brighton where this part of the film is set.