So Dark Horizons (http://www.darkhorizons.com/study-millennials-dont-like-pre-1970s-films/) said that Millennials don't like pre-1970s movies...as there would be a 40+ year difference, that would be akin to me not liking pre-1930s movies: although the difference would not stand. There are technical limitations with the comparison, as many of the silent era movies are a bit harder to grasp. So understandably with Millenials, black and white would be harder to grasp.
Attune yourself to constrasts and light is my response. Black and white to anyone is jarring, as it would have been to anyone for the first time...however you adjust. You see nuances you don't see in color. Textures. Facial expressions are not hidden behind garish hues - but open. Emoting is straightforward, subtle.
As a case in point to pre-70s movies that will change your perspective on cinema (if not life), try David Lean's 1945 drama, Brief Encounter.
If you want a solid stay-home date movie, you'll find no better. Celia Johnson and Trevor Howard offer the best performances on film, all guided under the expert of subtle gravitas, Sir David Lean. The music is incredible, using motifs from Rachmaninoff's Piano Concerto No 2. It lingers with you after, forever.
There may be free versions on-line, but that's simply not our style, spend a few dollars and enjoy: https://www.amazon.com/Brief-Encounter-David-Lean/dp/B001OAZC4Y. If it is a date night, enjoy a vodka+soda with salt and pepper popcorn. If you're lucky to make a meal for your date, I would go for beef medallions in a red wine reduction with peas and lightly toasted focaccia.
