Task: Analyze the tweet's emotional connotations 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 best portray the tweeter's mental state.
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