#34: Bill Murray and Scarlett Johansson
Bill Murray and Scarlett Johansson’s Lost In Translation became a massive hit in 2003, with one of its most memorable moments featuring an unscripted kiss. In the scene, after Murray’s character whispers something to Johansson, he leans in for a kiss that wasn’t in the script.

The film’s director later revealed that Murray often improvised to elicit genuine reactions from Johansson, and the kiss was another attempt to capture an authentic moment on camera. As for what Murray whispered in that final scene, the director admits she has no idea. It remains a mystery that intrigues fans unless Murray or Johansson decides to share the secret.