I think a lot of scifi films and TV programmes have infused the idea of space travel in that science fiction has become science fact. Shows such as Star Trek, Space 1999 and Unicorn Four have explained ideas regarding space travel in both the imaginary plane and the theoretical plane. If you take the TV series Unicorn Four for example there were some far out ideas there and a lot of which could be possible as soon as energy sources have been created and stabilised so that they can be used for their intergalactical functions. One example is here at the start of the first episode of Unicorn Four.