Maradonia and the Seven Bridges
Imagine a fantasy film made on $200, and adapting not just any fantasy novel, but one from the "youngest published author", so she claims, and then said author stars in her own train wreck? Behold Maradonia.
Costumes ranging from KISS goth fairies to leopard print Gandalf cloaks, skies inexplicably pink or poorly green screened, and audio at best clear enough for slurred lines or drowned out by the Floridian wilderness.
It's hard to find the film except for Internet archive, which I've linked below, along with other samples from it. Love to see you guys do this!
Lady Grey commented
I doubt that the author would let it be riffed. She's always been really touchy about any sort of criticism, so even if she did allow it she'd probably try to control the jokes. Which is unfortunate since this would make for an excellent riff.
Billy Bob commented
Maradonia is an upcoming "movie" based on a Lord of the Rings knockoff written by a 10 year old. Seriously. The plot is "two dimwit teens get sucked into a battle of generic good guys vs generic bad guys, things happen, blah blah blah."
Take a look at the trailer here, https://www.youtube.com/watch?t=760&v=7dC7KqZ3Zm4
"Book trailer" here: https://www.youtube.com/watch?v=X4OYYjXWCoI
You could riff the trailers as a short, and then do a full length when it eventually comes out.