The video above features behind-the-scenes footage of the late actor at work on the Fox musical dramedy and actual scenes with him as Finn Hudson, the quarterback-turned-glee club leader.
In the wake of Monteith's death, the Fox series plans to have his character departure in the third episode of the show's upcoming Season 5.
"The third episode will deal with the Finn Hudson character being written out of the show," Fox boss Kevin Reilly said last week. "That episode will deal directly with the incidents surrounding his death and drug addiction ... Ryan Murphy is going to film PSAs with the cast, as cast members, as friends of his, they're going to speak directly to the audience [about Cory] ... "
"Glee" Season 5 premieres Thursday, Sept. 26 at 9 p.m. ET on Fox.