filming started at the naval base of toulon france on  april  some scenes were filmed with colin firth at the commercial port of brest france between the  may and the th may  including scenes aboard the rescue ship atlantic tonjer serving as the seaway eagle on  may  it was reported that besides france shooting will also take place in locations throughout europe including belgium and norway on  july  the crew was in jette brussels and scenes were filmed in "salle excelsior" place cardinal mercier