Kissing might look effortlessly romantic on screen, but it is one of the hardest scenes to film for some actors. For decades, Hollywood has churned out love stories featuring iconic kissing sequences.

Whether it’s the chaste spaghetti kiss in Lady and the Tramp or Zendaya’s three-way tonsil tennis in Challengers, there’s a long and varied history of Hollywood kisses. You’ve got the scariest – ...