Leonardo DiCaprio became a huge Hollywood star thanks to his role in the Oscar-winning film Titanic, but that didn't stop him from making a rather embarrassing error on set.
The movie tells the story of a wealthy teen named Rose (played by Kate Winslet) who meets struggling artist Jack (DiCaprio) on board the ill-fated ship and soon falls in love.
In one scene, Jack sketches a nude picture of Rose after she asked him to "draw me like one of your French girls".
While that line has become iconic over the years, there's another from the scene which almost didn't exist.
In the film, Jack tells Rose to "lie on that bed, uh I mean couch," but that's not actually how the line was originally scripted.
Originally, Leonardo was supposed to simply say: "Lie on that couch." However, director James Cameron liked the line so much that he decided to keep it in the film.
That's not the only thing in the scene which has been changed.
While Jack sketches Rose's portrait while she poses in nothing but the Heart of the Ocean necklace, it's not actually Leonardo drawing. In fact, it's the film's director.
In an interview with Stephen Colbert, Kate explained: "No, Jim Cameron actually drew that. Maybe no one even knows that until this moment right now.
"Jim Cameron drew that and he did actually sketch me."
The actress clarified that she was in fact wearing a bathing suit during the scene and wasn't actually naked. She said James made the decision to do the sketch himself because he wanted to get it perfect.
The picture was reportedly sold for around $16,000 (£12,300). However, the identity of the buyer has never been revealed.
Kate also admitted she is still "haunted" by the nude scene as she is repeatedly asked to autograph photographs of it.
"I don't sign that one. It feels very uncomfortable. Why would you do that," she told Yahoo! Movies.
Kate added: "There's a photo of it as well that someone's lifted from a still of the film. That photo gets passed around. It's like, 'No, I didn't mean for it to be a photograph that I would end up seeing 16, 17 years later'."
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