Directer's Cut ?

Rating: Null/10 (1 November 2003)

I went to the theatre and saw Alien (Director's cut). I enjoyed the movie and do think it will be a "classic". But, I need for someone to please tell me what were the scenes that were changed as the "director's cut", because I could not find them. I have not seen the movie in its original form for some time, but I cannot realize the differences and I am very interested in knowing. Thank you for anyone that will elaborate.