10 Movies You Must Watch 1000 Times To Spot This

There's a good chance you've seen Rocky a bunch of times over the years - in addition to being one of the most crowd-pleasing underdog sports films of all time, it won the Best Picture Oscar and is generally regarded as an unshakable classic 45 years on.

Yet the film also contains a tiny but unarguably bizarre detail in the early going when Rocky (Sylvester Stallone) enters the locker room at Mickey's (Burgess Meredith) gym.

Look at the pillar behind Rocky and you'll see a most bizarre sign that simply reads "No kissing."

This is surely a reference to a scene in the film where Mickey tells Rocky, "women weaken legs." The sign seemingly reflects Mickey's belief that physical intimacy with a woman will reduce a boxer's effectiveness in the ring for one reason or another.

It certainly makes sense from Mickey's perspective that he'd put a not-so-joking sign up in his locker room, though let's be honest, how many Rocky fans have ever noticed it?