'Avengers: Infinity War' star names co-star as ultimate class clown

Name: 'Avengers: Infinity War' star names co-star as ultimate class clown
Uploaded: 2018-04-19T13:27:01
Duration: PT53.0S
Description: Anthony Mackie revealed to "GMA" that his Marvel co-star Mark Ruffalo constantly does "ridiculous stuff on set and cracks people up."

Anthony Mackie revealed to "GMA" that his Marvel co-star Mark Ruffalo constantly does "ridiculous stuff on set and cracks people up."