Rapto espacial

I was constantly surprised by where this film took me.

Initially expecting the the alien spaceship to have hostile intentions against the Earth, it simply kidnaps some miscellaneous and startled astronomers and makes off with them. After that it is nothing like the usual: aliens attack earth, humans fight back but are losing, humans find a clever trick/weapon/chemical/virus and defeat evil aliens (or get soundly defeated and taken over by evil aliens).

They are dumped into an alien base on an asteroid and the fun part is watching them work out where they are, and why. The ending is novel for its time, but a little tacky.

I enjoyed the film very much for its novelty and surprises (not its very basic special effects). It was a "nice" film. It is probably very dated now but I haven't seen it for 30 years.