The writer-director, Michael Sucsy, is probably not old or smart enough to have seen Greer Garson and Ronald Colman in Random Harvest, Mervyn LeRoy’s 1942 masterpiece about love and amnesia, but to a ripe old movie buff like me, The Vow brings back warm memories.
There's no close-up of the marquee, or of the posters on the street, to indicate what they've just seen, but here are some suggestions: Memento, Regarding Henry, Random Harvest, I Love You Again, any of the Bournes.