Which component of the star wars movies is possible according to our current understanding of physics?

 Star Wars uses science and technology in its settings and storylines, although its main focus is not necessarily on science. The component of the Star Wars movies which is possible according to our current understanding of physics is their interstellar travel.
The behavior of spacecraft engaged in battle is another aspect of the films is troubling the scientists. According to them,  when hit in space by a blaster, the crafts should continue moving in the same direction as the impact rather than falling downwards as the effects of gravity would not apply while in orbit. 

Depending on how the continental plates move it can cause a continental scale shift.

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