Basic fundamentals of any living specie anywhere in the universe would be same as us just their way of evolution could be different other than microscopic life forms which can survive in water a more advanced lifeform that can survive on any surface other than water would need oxygen we always say exoplanets that could have a civilization on a planet similar to earth conditions for it to support life,in your fantasy movies aliens may be able to live even on the sun but that is not reality just a way of creating ideas in a mind and entertainment if movies are reality aliens should be everywhere on earth
Yes if you mean microscopic life forms that did not evolve on earth as aliens then its true