voilà ce que j´ai pu en tirer, en rectifiant des fautes de français et certaines répétitions inutiles, ça donne ça :
The aliens, mysterious creatures to say the least, that have not finished being the talk of the town, during the 20th century, mankind tried to understand but be that as it may, if they do exist, it´s likely that they are not like in different science-fiction movies, where they are green-skinned, have a strange voice and language, because according to scientists, if life exists elsewhere, it could be in different forms, as simple living cells, as little animals, they could look like mankind...
In a way, we can give free rein to our imagination and see them like the most famous "extraterrestrial" movies as "la soupe ......".
And, as we know, we can also imagine them. I don´t imagine them because I don´t believe in anything odd and think aliens don´t live all over the same planet. Maybe there are different sorts, small, tall, big, thin, with several arms...
But to come back to earth : only the SETI, founded in the beginning of the sixties, will one day reveal existence of aliens or not, and most of all, what do they look like, what kind of shape. On that day, alien films will not exist anymore.
But according to me, we will wait for a very long time.
ouf