Leonard and Sheldon are brilliant physicists--geniuses in the laboratory, but socially challenged everywhere else. Enter their beautiful, street-smart neighbor, Penny, who aims to teach them a thing or two about life. Leonard believes he's found true love with Penny and they have finally gotten engaged. Director: chuck lorre, bill prady. Actors: johnny galecki, jim parsons, simon helberg. Released in 2015. Genre: TV. 2 discs. Rated 12. Run time 478 minutes. Languages: english. Subtitles: english. Region 2.