Will Smith went on “The Tonight Show” and revealed some details about his new movie.

He said sisters Serena and Venus Williams made him feel nervous when they said they wanted to see the film.

The actor said the siblings wanted to “to withhold whether or not they put their names on the film until they saw it.”

Smith said that “it’s the worst two hours ever” when Venus and Serena was watching “King Richard.”

The Williams sisters adored the movie, and according to Smith, they “cried all the way through.”

Prior to getting to know Richard Williams, Smith admitted that he thought he was a “classic overbearing father.”

Smith got to know Richard through her daughters and wife and said he was “a loving, caring, doting father.”

Venus expressed her excitement when she knew Smith was playing the role: “When we heard that Will wanted to do it, it was like, 'Oh my God, this movie is going to be the real deal.' Whatever film he's in, it's the real deal.”

“King Richard” will be released on November 19 on HBO Max and in theaters.