Actor Vikram, who has been dubbing for his upcoming Tamil film I in Hindi over the last few days, is said to be putting in extra effort to get his lines right. He's apparently spending hours to prepare and dub in Hindi without an accent. "Vikram sir wants to get the Hindi lines right. Therefore, he's spending a lot of time in dubbing to ensure he's mouthing the dialogues without an accent," a source from the film's unit told us. "Since the makers want to promote I as a straight Hindi film, Vikram sir is pushing himself to get everything right," he added. Currently in post-production, "I" is directed by Shankar. It also features Amy Jackson and Upen Patel in the lead roles. Vikram is also expected to dub for the Telugu version of I. (Source: IANS)