[[caption-width-right:350:The FiveManBand RecycledINSPACE!]]

Four men and one woman hold a hasty press conference before blasting off into space in the ''RXM'' (Rocketship Expedition Moon). But a miscalculation in the fuel mixture sends the RXM hurtling off at tremendous velocity, knocking the crew unconscious. Upon waking they discover they're near the planet Mars. Deciding they might as well explore that planet instead, the crew land to discover the remnants of an alien culture literally "bombed back to the Stone Age" after a nuclear war.

In 1949 Hollywood was abuzz with the news of George Pal's upcoming ''Film/DestinationMoon''. Taking advantage of the movie's long production time (due to its extensive special effects), exploitation studio Lippert Productions decided to beat them to the cinemas. The result was ''Rocketship [[XtremeKoolLetterz X-M]]'' (AKA ''Expedition Moon'' and ''Rocketship XM-1'') filmed in only eighteen days. It shows. While competently written and directed by Kurt Neumann, the movie contains moments of FridgeLogic, HollywoodScience and SpecialEffectsFailure that decades later were gleefuly riffed by ''MysteryScienceTheater3000''.

Nevertheless the movie was a great success at the box office and has garnered some staunch fans over the years. One of them -- producer Wade Williams -- spent six years tracking down a fine grain print of the film which he then restored, even reshooting some of the scenes with special effects models and doubles of the original actors.

For the ''MysteryScienceTheater3000'' version, please go to the [[Recap/MysteryScienceTheater3000S02E01RocketshipXM episode recap page]].

!!''Rocketship X-M'' includes examples of:

* AfterTheEnd: Mars
* AllPlanetsAreEarthLike: Averted in that [[CaliforniaDoubling California's Death Valley doubles for Mars]], which is actually quite similar (NASA tested some of its Mars equipment there). But apparently [[SpaceSuitsAreSCUBAGear war-surplus jumpsuits and oxygen masks]] are all you need to walk around on the surface.
* DefrostingIceQueen: Dr Lisa Van Horn eventually falls into the arms of handsome pilot Floyd Graham, though [[AnguishedDeclarationOfLove only at the point of imminent death]].
* DeusExMachina: None of the plot contrivances would work otherwise. Heavily lampshaded, as various characters question whether God actually ''is'' interfering in the mission.
-->'''Eckstrom:''' "Unbelievable...it couldn't be mere chance! I don't quite know how to tell you it's so...if I could have even dreamed that an incredible set of circumstances, each precisely and exactly timed...would carry us unerringly though space to our most congenial planetary neighbour, Mars..."
** Averted at the return attempt, however.
* DevelopingDoomedCharacters: The press conference scene before the launch; takes less time than ''Destination Moon'', but ''they'' had WoodyWoodpecker.
* DoesThisRemindYouOfAnything: Even for a Golden Age RetroRocket, the RXM looks unusually phallic.
* [[spoiler:DownerEnding]]
* DuelingMovies: And not just at the box office -- contrast the anti-nuclear {{Aesop}} of this movie with the pro-nuclear theme of ''DestinationMoon''.
** To the point that, as noted below, the ship only misses the moon because of a nasty letter sent to this movie's producers.
* FiveManBand: Standard BMovie cast with a [[TheCaptain serious older guy]], a [[TheLancer cocky handsome]] AcePilot, a [[TheSmartGuy shy handsome guy]], the Broadly Accented PluckyComicRelief, and TheChick.
* HollywoodScience: Glaringly obvious when compared to its rival ''DestinationMoon''. Rather than using advisors of the calibre of Creator/RobertAHeinlein and Chesley Bonestell, scriptwriter Kurt Neumann took his information from a 1949 ''Life'' magazine article which itself contained several scientific errors.
* InterplanetaryVoyage
* [[spoiler:KillEmAll: Several expedition members are killed by the Martians. The remainder return to Earth only to have their rocketship crash because they've no fuel to land, or even put themselves into orbit.]]
* RedFilterOfDoom: Although filmed in B&W, scenes on [[UsefulNotes/{{Mars}} the Red Planet]] were given a red-tint, an effect restored by Wade Williams for the DVD release. The trope is appropriate when it's revealed that Mars has been reduced to barbarism by a nuclear war.
* SciFiWritersHaveNoSenseOfScale: [[RealLifeWritesThePlot To avoid being sued by George Pal]] this Moon expedition goes to Mars instead. What the hell -- it's only 50 million miles away! The journey from Earth orbit to Mars takes days instead of months [[spoiler:and they still have enough fuel, water, oxygen and food to make it ''most'' of the way back]].
* SoundInSpace: The obligatory meteor shower goes roaring past the rocketship.
* SpaceFriction: Apparently when the engines stop in space, you're stranded and can't move.