Capt. Hendry: Twenty thousand tons of steel is an awful lot of metal for an airplane.
Dr. Carrington: It is for the sort of airplane we know, Captain.
  
  
  
  
  
   
  
  
Dr. Carrington: It is for the sort of airplane we know, Captain.
 Capt. Hendry : Twenty thousand tons of steel is an awful lot of metal for an airplane. 
 Dr. Carrington :  It is for the sort of airplane we  know , Captain. 
http://www.moviequotedb.com/movies/thing-from-another-world-the/quote_56096.html