When in church people rise when Vivienne's song is playing, from the front camera shot Vivienne's grandfather is missing.
In the film's beginning Alex exits the restaurant. In the window it says White River. He is driving to Winnipeg which is west of White River. However Vivienne has a sign that says Wawa. That means he would be heading east back to Wawa instead of west to Winnipeg.
On two separate occasions, Linda refers to distances in miles. It is unlikely that a Canadian would instinctively use miles when expressing distance, as Canada uses kilometres.