“But this does put smile on my face!” says Thanos, after being defeated by the Avengers. This line is not used in the movie. However, it is in the Avengers: Infinity War official video, which was released November 29, 2017. The quote was a big hit with fans and was used on various websites for promotion. I’m not sure why, but I just love the fact that this movie puts a smile on my face.