It's the rain that is scarier than the thunder.

Despite Ben Stiller’s usual, self-involved comedy and Jack Black rolling on the ground convulsing for most of the movie, Tropic Thunder had its stomach-crunching moments of hilarity. For all its outrageousness, the comedy truly shined in the dead pan dialogue deliveries. In that vein, Rain of Madness was born. Taking the parody one step further, the crew created a 30-minute, Heart of Darkness-style faux documentary that follows the faux movie within the real movie.

While the trailer for the documentary was released last month, the entire “documentary” is now available on iTunes — for free. Candid interviews, script writing sessions and Robert Downey Jr. taking people hostage is the madness of >Tropic Thunder.