This insane take on classic cinema is an indie from Colorado and perfect for a riffing - a story about the fall of Rome shot mostly shot on green screen in one man's apartment complete with sequences that are suggestive of an acid trip and hilarious by themselves but are perfect set ups for riffing such as this instantly classic scene: https://youtu.be/bNh9hcmHD_0

Just now released on Amazon VOD, it is ripe for for riffing!! And this is coming from the actor who played Ceasar.