There's one more Grace Kelly and Alfred Hitchcock collab that deserves a place on this list, and it's Rear Window. Bored and in a wheelchair while stuck a stuffy city apartment, Jimmy Stewart is a photographer who starts spying on his neighbors (kinda creepy, I guess) and suspects that one of them has committed murder. Grace is his socialite girlfriend who helps investigate.
It's not a romance movie per se, but the relationship between Jimmy and Grace's characters is a centerpiece in the movie. What better way to bond as a couple than trying to apprehend a homicidal maniac? #goals
Rear Window is a masterclass in suspense and is one of Hitchcock's best films. It's a slow build, but be patient: the tension and paranoia soon turn delicious in this quintessential summer thriller.
Stream Rear Window on Amazon Prime, or rent/buy on Apple TV, Vudu, Google Play, and YouTube.