3100
what was the name of the movie with robert de niro and ben stiller
 robert de niro and ben stiller
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: genre, year, plot, average ratings, actor, title, song, character, rating, review, director, trailer 
Text: {0} 
Answer:
 robert de niro and ben stiller