seth: document now, very popular. [ cheers and applause >> -- seth meyers -- dozens of fans in the audience >> seth: dozens of fans. >> johnluckily, we were in a different age bracket of sondheim, so we cast bradley as sondheim. >> seth: and sondheim liked it, right? he's -- he liked the performance. >> yes, he -- he wrote me -- "you treated me gently and royally, for which i am grateful." but he had a note, which is there's -- there's a moment in which the character of sondheim leaves a message for -- for jonathan larson, and i forget what the sentence was. but he was like, "i would never say that." [ laughter ] "can i rewrite my voicemail message? >> seth: so he thought the way you presented him in the film, even though it was him being kind, was, maybe, a little cliche >> yeah, this one moment, this one sentence >> seth: yeah. >> it was like, "i think you have a bright future in this business." and he was like, "i would never say 'bright future' in this business." [ laughter ] and so he said, "can you rewrite it and if you can't get the actor back to record the voicemail, i'll - i'll -- i'll record myself." and i was li