I remember seeing this as a child on TV. I wonder if there is a kine scope or video of this Hallmark Hall of Fame show somewhere? It's truly a delightful play that was once performed at my high school back in the 1960's. As I remember the show generally had a non-film look. So probably a copy on film of this play is nonexistent. As I understand it, Karloff had originally played Jonathan Brewster in the initial run of the play. I would definitely be interested in buying this version if it were available. Raymond Massey does a creditable job as Jonathan in the filmed version but the impact of these lines are lessened somewhat. Those immortal lines spoken by Karloff as Jonathan Brewster: "He said I looked like Boris Karloff!"
Review of Arsenic & Old Lace
