There are a number of movies whose success has led to the creation of its sequels. A number of factors such as the audience interest and the success of the movie lead to the creation of the movie sequels. This trend has been continuing from years and is immensely followed in the present years. Some of the movie sequels are widely appreciated while some of them are squeezed off by the audience. Among a number of movie sequels two movies which has been widely discussed by the people all around the world and has been gathering audience for a long time, is ‘Alien’ directed by Ridley Scott in the year 1979 and the other one is ‘Aliens’ which is the sequel of the previous movie directed by James Cameroon released in the year 1996. Both the movies were similar in some aspects while different in others (Lichtenfeld & Eric, 2006). In this report we are having a detailed review of the similarities and the differences between both the movies and the detailed review of both of them. We will be analyzing the story, the characters, and the direction and will find out the similarities and differences in the two movies.