"We did the very clichéd, in the beginning, goofy blonde who says foolish things," Lorre says of the character Penny.
On The Official Big Bang Theory Podcast, Chuck Lorre said that Kaley Cuoco's Penny wasn't fully developed in the earlier seasons of the show.
The film's production coincided with season 8 of The Big Bang Theory, including the episode of Penny and Leonard's (Johnny Galecki) wedding in season 9. The lack of explanation in The Big Bang ...