We already know that Christopher Nolan loves incorporating concepts about the fluidity of time — but perhaps surprisingly, he's never written a film involving time travel itself. Sure, it's touched upon in the plots of both Interstellar and Inception, though their past and future are depicted only as independent, unalterable, and inaccessible states to escape to from the present. Like in Dunkirk, its anticipated sequel will be based around events of World War II, and according to THR sources, will also incorporate similar time-bending elements as seen in Interstellar. THR claims that embedding these similar time concepts into the plot could likely mean directly impacting these historical events in some way, and is a viable reason why the movie may premiere a sequence explicitly based around time travel.
