Jim Parsons Talks HBO's NORMAL HEART on Today's ELLEN

"Big Bang Theory" star Jim Parsons stops by today's ELLEN and talks about his plans to tie the knot with his partner of ten years. Check out the clip here!

Later, Parsons discusses his role in the upcoming HBO drama THE NORMAL HEART, premiering May 25th. The actor explains the impact the story has had on him and the world. Watch the clip here.

Directed by Ryan Murphy and written by Larry Kramer, adapting his groundbreaking Tony Award-winning play of the same name, THE NORMAL HEART, tells the story of the onset of the HIV-AIDS Crisis in New York City in the early 1980s, taking an unflinching look at the nation's sexual politics as gay activists and their allies in the medical community fight to expose the truth about the burgeoning epidemic to a city and nation in denial.

The film stars Academy Award nominee Mark Ruffalo ("The Kids Are All Right"), Matt Bomer ("White Collar"), Taylor Kitsch ("Lone Survivor"), Emmy(R) winner Jim Parsons ("The Big Bang Theory") and Academy Award winner Julia Roberts as well as Alfred Molina ("An Education"), Tony Award winner Joe Mantello ("Law & Order"), Jonathan Groff(HBO's "Looking"), Denis O'Hare (HBO's "True Blood"), Stephen Spinella ("Milk"), Corey Stoll ("House of Cards"),Finn Wittrock ("Unbroken"), and BD Wong (HBO's "Oz").

An HBO Films presentation of a Plan B and Blumhouse production in association with Ryan Murphy Productions,The Normal Heart is executive produced by Ryan Murphy, Dante Di Loreto ("Glee"), Jason Blum (the "Paranormal Activity" series), Brad Pitt ("Moneyball"), Dede Gardner ("12 Years a Slave"). Mark Ruffalo co-executive produces;Scott Ferguson (HBO's "Temple Grandin") produces.