Robert Pattinson in "How To Be" - Trailer

A wry comedy about Art, a frustrated musician, who is undergoing what he sees as a quarter life crisis. This is not helped when his girlfriend dumps him and he has to move back in with his middle class parents — who are far from thrilled with the idea.
Art's only friend, agoraphobic Ronny, has his own problems. Holed up in a London flat in a daze of nitrous oxide and electro music, Ronny wants to start a band with Art and happy-go-lucky friend Nikki, but only if it involves going no further afield than the flat's roof garden.
Art discovers self-help guru, Dr Levi Ellington, author of "It's Not Your Fault". Using inheritance money, Art pays for Dr Ellington to move in with him and his parents, becoming Art's full-time life coach and shadowing him wherever he goes.