sentences:  His third and fourth films, Ezhil's family drama "Poovellam Un Vasam" (2001) and Sasi's romantic film "Roja Koottam" (2002), were also highly profitable ventures.In 2012, Ravichandran and director Shankar began work on the romantic thriller film, "I" (2015), featuring Vikram in the lead role.En route to becoming one of the most expensive Tamil films of all time, "I" took three years to complete, with over ten thousand people involved in the making of the film.