Jimmy Fallon, the show’s host, and Mark Ruffalo, his celebrity guest, played the Best Friend Challenge, and the results made it seem like Fallon and Ruffalo were … not very good friends at all!

Don’t let Mark Ruffalo near your film spoilers. Ahead of the show’s airing that night, Ruffalo tweeted at Fallon asking him to “cut my spoiler slip” from the broadcast. “That was ‘off ...

Jimmy Fallon resurfaced the actor's early work on Thursday's 'Tonight Show' episode. By THR Staff Mark Ruffalo 1989 Clearasil Ad H 2015 Ruffalo smolders and smiles in the street-set ad for the ...

It was back in November 2014 that Ruffalo had appeared on The Tonight Show Starring Jimmy Fallon. While talking about a lot of fun stuff, the Begin Again actor then went on to recall the time he ...

The story started last Friday when Mark Ruffalo tweeted a plea to Jimmy Fallon to cut his "spoiler slip" from the taping of that night's show. This, of course, got people talking as we all ...

Ruffalo's poignant response comes on the heels of his Oct. 5 appearance on the The Tonight Show Starring Jimmy Fallon in which he seemed to drop some major spoilers about the future of the Marvel ...