Gabrielle Union was reportedly only supposed to cheer during this scene in Meet Dave, but she took things in an unexpected direction by improvising a slap to the back of Eddie Murphy’s head without warning. According to the story, nobody on set knew it was coming, making the cast’s stunned expressions and confused double-takes even funnier. Union allegedly feared the spontaneous move might cost her career, until Murphy burst out laughing. The moment reportedly made it into the final film, turning an unscripted surprise into one of the movie’s most memorable comedic scenes.