End of Sentence

The lake scenes were shot at Lough Tay, County Wicklow, Ireland. The backdrop may be familiar to viewers of the TV show "Vikings" where the lake serves as the shores of Kattegat. Like the lake in the movie, Lough Yay is also on private lands.

Sean throws his coat onto a fence so that he and Frank can climb over it without getting caught on the razor-wire at the top. When they come back, Sean retrieves his coat which comes away without snagging on the razor-wire. This would mean that the razor-wire wasn't doing its job.