290691
During that time he helped to secure the backing for hundreds of films and which launched the careers of several prominent film directors , including Ridley Scott and David Puttnam .
 Ridley Scott, David Puttnam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ridley Scott, David Puttnam