Update app.py

app.py

@@ -41,7 +41,7 @@ except:
 def get_movies(message, history):
 
     try:
-        movies =  vector_store.similarity_search(message, 3)
+        movies =  vector_store.similarity_search(query=message, k=3, embedding_key='plot_embedding')
         return_text = ''
         for movie in movies:
             return_text = return_text + 'Title : ' +  movie.metadata['title'] + '\n------------\n' + 'Plot: ' + movie.page_content + '\n\n'