Lost in Translation

One of the most-discussed parts of Sofia Coppola's Lost in Translation is the tender moment at the end between Charlotte (Scarlett Johansson) and Bob (Bill Murray). The whisper wasn't the only thing Murray contributed to the scene — according to Coppola, their kiss was never planned either.

Stranger Things

Lucas (Caleb McLaughlin) and Max (Sadie Sink) share a first kiss in the season 2 finale. Before adding the kiss, Ross Duffer apparently joked with Sink about having her kiss McLaughlin, and the idea stressed Sink out so much that he decided to do it for real.

Star Wars: The Last Jedi

In Episode VIII Luke Skywalker (Mark Hamill) told Leia (Carrie Fisher) "No one's ever really gone" before kissing her tenderly on her forehead. The kiss Luke gives his sister wasn't part of the script, instead, Hamill said he spontaneously decided to do it.

American Hustle

At a pivotal moment in the film, Rosalyn (Jennifer Lawrence) argues with her husband's mistress Sydney (Amy Adams) in a bathroom, and in the middle of the confrontation Rosalyn aggressively kisses her. The director, David O. Russell said the kiss was improvised by the actresses.

Edge of Tomorrow

Screenwriter Christopher McQuarrie said they struggled to find a place in the film for Cage (Tom Cruise) and Rita (Emily Blunt) to kiss, but apparently the actress hadn't. McQuarrie said as they shot a scene in which Rita says goodbye to Cage, "[Blunt] just kissed him goodbye in the moment. And it was not in the script. It was not even discussed."

The Hunger Games

Woody Harrelson said his kiss with Elizabeth Banks in the film had nothing to do with the script and actually was due to a crush he had. "She didn't know I was even going to do it," Harrelson said, "I just kissed her."

Game of Thrones

Fans speculated wildly about the glimpse of a kiss between Yara Greyjoy (Gemma Whelan) and Ellaria Sand (Indira Varma) they saw in trailers. Whelan and Sand said the kiss was improvised. "It just seemed like something we should do," Whelan said.

Jurassic World

In the script for 2015's Jurassic World, Owen (Chris Pratt) and Claire (Bryce Dallas Howard) didn't kiss. Howard said the kiss, which was set amidst park visitors screaming and running in panic — was "spontaneous," and wasn't shot until the final day of filming.

The Office

The Office season 3 premiere episode "Gay Witch Hunt" ends with arguably the most awkward kiss in the history of television, when Michael Scott (Steve Carell) kisses Oscar (Oscar Nuñez) on the lips." We were just supposed to hug," Nuñez said, "and he kept hugging me. And that particular take he came in really close, and I'm like, "Where is he going with this?" Oh, dear, yes, here we go."

A Room with a View

The critically acclaimed romance A Room with a View was filmed when Helena Bonham Carter was only 18 years old. According to Carter, the film crew was waiting for a "magic moment" to get a kiss with her and Sands. Carter said the moment finally came when she was struggling to stay upright in heels, falling into the kiss.

New Girl

The first time New Girl fans saw the bro-mancing pair (Jake Johnson and Max Greenfield) kiss was a little over halfway through the first season in the episode "Injured”. Greenfield said that while it may have been the first time a kiss made it to the screen, it was hardly their first. "We'll do a lot of improv on the show and I'll just go in and kiss [Johnson] sometimes”.

Teen Wolf

At the Showtime Con 2 in Madrid Holland Roden (Lydia) shocked fans with the revelation that co-star Dylan O'Brien (Stiles) created what fans called "Stydia" (the coupling of Teen Wolf characters Stiles and Lydia). Roden said O'Brien surprised her by kissing her on the cheek at the end of a scene, and the kiss survived the editing process.

Riverdale

In "Chapter Seventy-Four: Wicked Little Town," Kevin Keller (Casey Cott) decides it's time for Riverdale High to host variety shows again. During the Hedwig original "Tear Me Down" Kevin and Archie (K.J. Apa) lock lips, and according to Cott even though the kiss was never planned, it absolutely had to happen.

Person of Interest

From the beginning of the sci-fi crime drama Person of Interest, fans noticed romantic tension between CIA operative John Reese (Jim Caviezel) and NYPD Detective Joss Carter (Taraji P. Henson). According to the show's producers, even though the kiss was a landmark moment for the characters, it was a decision the actors made completely on their own.

Woo

Jada Pinkett Smith played Davidson's love interest in the romcom, and while dancing with his co-star in the final scene, Davidson kissed Smith without warning. Though he said Smith flinched when he kissed her, at the time he "didn't think it was all that big of a deal.” Jada's husband Will Smith didn't feel the same.

The Persuaders!

In '70s action comedy TV series The Persuaders Valerie Leon appears as Space Queen in "The Long Goodbye," as one of a number of women claiming to be heiress to a dead scientist. "Roger (Moore) gave me an unscripted kiss," she recalled. "I just closed my eyes and enjoyed it. They kept it in."

Grey's Anatomy

In the episode "All of Me", Jo (Camilla Luddington) learns she’s been tapped for a hotly sought-after surgery fellowship. Not being able to contain her excitement she celebrates by not only kissing her fiancé Alex (Justin Chambers) but Arizona (Jessica Capshaw) too, saying later, “It was unscripted but I thought hello?!!! Who wouldn't want to also smooch Arizona Robbins."

The Edge

Model Elle Macpherson hasn't done a lot of acting work, and when she starred in 1997's The Edge, she'd done even less. Macpherson said her unexpected kiss with Anthony Hopkins took place during the auditioning process for The Edge rather than during the filming.