See RiffTrax LIVE and in-person at the State Theatre in Minneapolis! Tickets for RiffTrax Live: Point Break are on sale now!

Destination Inner Space

Please choose a format above.

Unspeakable horrors lurk deep beneath the surface of the ocean. Namely, middle-aged 1960s schlubs changing into too-tight scuba gear. You may think we’re weird for leading off with that, as it’s not really a selling point for a movie. Well, tell that to the makers of Destination Inner Space, who evidently thought it was compelling enough to devote roughly a quarter of the movie’s runtime to!

The crew of the undersea Marine Science Institute is alarmed when they detect an unidentified vessel on their sonar, and also realize that their sealab is very obviously just an aquarium decoration. When they finally set foot on the alien ship, they do the only sensible thing and bring the most sinister object they can find back with them. Very soon, a horrible creature that looks like Blanka from Street Fighter grew scales starts wreaking havoc, and even the most adorable lil’ submarine may not be enough to stand in its way.

Lungs ache for air! Underwater breathing apparatuses self-contain!! Fish creatures toss humans around like some sort of horrible “reverse Lew Zealand from the Muppets” scenario!!! It’s all here in our riff of Destination Inner Space!

Written by: Mike Nelson, Conor Lastowka, and Sean Thomason

Contributing writers: Jason Miller and Zach Shatzer

Rated TV-PG for 1960s violence and excessive diving prep.

Digital Video file formats

Legacy devices (301.29 MB)
Low (450.11 MB)
Medium (818.76 MB)
High (TV) 480p (1.28 GB)
Burnable DVD Image (3.68 GB)

All digital products you purchase from are DRM-free, can be played across a large variety of devices, and are yours to keep ... forever! Even if you have a hard drive meltdown, you can always log back into the site and re-download all of your previous purchases.

For our Download and Stream products, you can stream the product to your computer or to your TV via Chromecast, or download to a device that can play the MP4 file format. For more information on our video formats, please see this KB article.

Just the Jokes are simply MP3 files which are DRM free and can be enjoyed on any device that can play this common audio format.

Poster art by Bob Fingerman
Poster art by Bob Fingerman

RiffMeter rating

Average: 9.5 (87 votes)

Content Rating



Movie Decade

Movie Decade

Release date

January 20, 2023


68 minutes
Captions (Streaming Video)