Remarkable for its pop culture impact, director Ang Lee's 'Brokeback Mountain' received widespread critical acclaim in 2005 for its story of two ranch hands struggling with the consequences of their passionate, forbidden gay relationship. Jake Gyllenhaal and the late Heath Ledger, both heterosexual actors, delivered dignified, convincing performances that helped push the boundaries of Hollywood mainstream productions and paved the way for gay characters in projects ranging from 'Milk' and 'The Kids Are All Right' to TV's "Modern Family" and "Glee."