Right after the cast credits, "On the Nature of Daylight" by Max Richter is given an extra credit as the "Beginning and end music" in addition to the usual soundtrack credit near the end of the credit roll.
Denis Villeneuve's daughter, Salomé Villeneuve, is listed as "Hazmat Suit Specialist".
After credits have finished, there is a short documentary on the making of Arrival.
During the end credits Anana Rydvald is credited as Swedish Scientist rather than Danish Scientist. Sweden and Denmark are neighboring countries.