Task: Evaluate the tweet for emotional cues and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that indicate the tweeter's state of mind.
Tweet: The return of Matt Damon, and of director Paul Greengrass, brings back all the exhilarating if rather po-faced entertainment to a movie
This tweet contains emotions: 
joy, optimism