Watch Half Girlfriend Hindi Movie Trailer on YouTube. Half Girlfriend Hindi movie is starring Arjun Kapoor, as Madhav Jha & Shraddha Kapoor as Riya Somani. The movie is set against the backdrop of three distinct worlds of Delhi, Patna & New York. Madhav wanted a relationship. Riya did’nt. So, she decided to be his ‘Half Girlfriend’. More than a friend, less than a girlfriend.