Fresh with the play's commercial and critical success, Lohithadas was introduced to K. G. George by actor Thilakan. It did not help Lohithadas to start a career in Malayalam cinema. But it was K. G. George who gave the basic core idea of the story, later which was developed by Lohithadas to make the film Kireedam. Later, Thilakan introduced Lohithadas to director Sibi Malayil when Sibi was searching for a good writer for his films. Thus Lohi's first movie screenplay was "Thaniavarthanam" directed by "Sibi Malayil" was moderate success. Together, Sibi Malayil and Lohithadas would later produce several memorable Malayalam movies. His screenplay works for Sibi Malayil are "Thaniyavarthanam" (1987), "Dasharatham" (1989), "Kireedam" (1989), "His Highness Abdullah" (1990), "Bharatham" (1990), "Dhanam" (1991), "Kamaladalam" (1992), and "Chenkol" (1993). Other works include "Veendum Chila Veettukaryangal" (1999), "Sasneham" (1990) for Sathyan Anthikkad and "Amaram", "Venkalam"(1991) for Bharathan.