Enjoy Telugu movie Happy days Trailer. ollywood director Sekhar Kammula picked all new cast for his upcoming film "Happy Days" that is slated to release on september 14th. Barring Tamanna, the film has all new cast and is a youth film. The film is set in college backdrop and as per Telugu Cinemass reports, the film might be well received. Every one can identify themselves with one or the character in the film. Sekhar's films have already got a grip on the A centers and overseas.