VIDEO : Casey Affleck Says Ben Affleck Will ?Get Things Back on Track?

?Extra? caught up with Casey Affleck at the Toronto Film Festival, where the actor debuted his film ?The Old Man and the Gun.?

Casey shared an update on his brother Ben. Ben checked into rehab for a third time in August. Casey saying, ?He?s a great guy, and he?s going to get things back on track."

Casey is starring in ?The Old Man and the Gun? with Robert Redford. ?The Old Man and the Gun? hits theaters September 28.