Mark Ruffalo video chats with Jimmy about how he pulled off playing twins without CGI in the limited HBO series, I Know This Much Is True, and highlights the work Protect the Sacred is doing to support Navajo Nation elders and others most vulnerable to COVID-19.

Subscribe NOW to The Tonight Show Starring Jimmy Fallon: http://bit.ly/1nwT1aN

Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35/10:35c

Get more The Tonight Show Starring Jimmy Fallon: https://www.nbc.com/the-tonight-show

JIMMY FALLON ON SOCIAL
Follow Jimmy: http://Twitter.com/JimmyFallon
Like Jimmy: https://Facebook.com/JimmyFallon
Follow Jimmy: https://www.instagram.com/jimmyfallon/

THE TONIGHT SHOW ON SOCIAL
Follow The Tonight Show: http://Twitter.com/FallonTonight
Like The Tonight Show: https://Facebook.com/FallonTonight
Follow The Tonight Show: https://www.instagram.com/fallontonight/
Tonight Show Tumblr: http://fallontonight.tumblr.com

The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show, including comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives.

GET MORE NBC
NBC YouTube: http://bit.ly/1dM1qBH
Like NBC: http://Facebook.com/NBC
Follow NBC: http://Twitter.com/NBC
NBC Instagram: http://instagram.com/nbctv
NBC Tumblr: http://nbctv.tumblr.com/

Mark Ruffalo Joins Navajo Nation's COVID-19 Fight
http://www.youtube.com/fallontonight

#FallonTonight
#MarkRuffalo
#JimmyFallon