Director Diphan tires to steps out of his comfort zone but fails to deliver a good film.
While Prithviraj plays a stunt artiste in Heor, Yami will be playing a south Indian sensation star.
Prithviraj plays a stunt man while Yami Gautam makes her debut in the Malayalam film.
The cast includes Fahadh Faasil, Jayasurya, Asif Ali, Unni Mukundan, Anoop Menon, Samuthirakani, Ananya, Bhama and Tanusree Ghosh
Two successful directors of Malayalam cinema -- Diphan and Shaji Kailas -- are going to direct London Dreams together.