Britain's Prince Charles had someone to warn him when Will Smith's sex scene was coming up in 'Ali'.
The 'Men In Black 3' actor saw a royal aide tap the future king on the shoulder to warn him about the 43-year-old star's onscreen intimate moment with his real life wife Jada Pinkett Smith in the 2001 Muhammad Ali biopic during a screening at the London premiere of the movie.
Speaking on tonight's (18.05.12) 'Graham Norton Show', Will says: "Someone taps his shoulder before the love scene comes up and he looks down.
"I'm thinking, 'Come on, this is my best work!' When the love scene was over someone tapped him and he looked back up."
Charles is known to be a keen film lover and he unveiled his environmental documentary 'Harmony: A New Way of Looking at Our World' at the Sundance London Film and Musical Festival last month alongside acting legend Robert Redford, who praised the royal's "commitment" to his motion picture.
He told BANG Showbiz: "His Royal Highness has been working on the same topic for many, many years. Over the years we have indirectly communicated over that common interest.
"I met with him last spring to discuss the idea of how we could work that into our festival as that's a part of Sundance as well. He's been committed for a long time, which I greatly admire, to sustainability and environmental conservational, so I've done the same thing in my country it seems a natural fit that we could support it in this country."
