Cinema Betty

In A Secret Infatuation, the plot begins to move only when facilitated by a ghostly fog that blankets the moors. To that end, I recommend:

The Divorce of Lady X

Leslie Steele (Merle Oberon), a guest at a costume party is forced to stay overnight in a hotel because of a particularly bad London fog. As there are no rooms available, Steele talks her way into sharing a suite with Everard Logan (Laurence Olivier), a handsome but somewhat stiff lawyer. They spend the night together, quite chastely, but Logan becomes convinced that Leslie must be married. His conviction is confirmed when an old school friend, Lord Mere (Ralph Richardson) arrives and asks Everard to represent him in a divorce case against his wife, Lady Claire (Binnie Barnes).
I haven't seen this in years and years (can't you petition Netflix or something?) so can't tell you how I would feel about it now (maybe it's actually terrible) but as a teenager I loved it ('It' probably being the dreamy Laurence Olivier).

I am really stretching here but for Midnight Sun's Magic, I suggest:

North to Alaska

John Wayne drags French floozy to his goldmine in Alaska so that his partner...oh heck. The plot doesn't actually make much sense but everybody wants the floozy for themselves, jealousy ensues and if an RDD were ever to engage in a bout of fisticuffs with a caddish Ola then the very muddy fight scene at the end would satisfy. Does the floozy ever get a word in edgewise? Just barely and by the skin of her teeth. Happy endings all around.