Well this was titled (Dark Space) when I watched it!
A strange sci fi tale from low budgetville.
A group of party dudes are off to Centauri 5, for a holiday, boozing and drug taking when their ship is caught in a wormhole and catapulted to an unexplored part of the galaxy.
crash landing on a planet that looks just like Earth? they are out of luck, because some stormtrooper-like human's are purging the planet of its indigenous species with flame throwers and snazzy laser guns.
No explanation why they are killing off the aliens? or why they are carrying samurai swords either?
but, hey, asks no questions!
I have seen worse budget movies, put it that way!