The trailer of the much anticipated 'Leo' directed by Lokesh Kanagaraj and starring Thalapathy Vijay is out. Like the expectations, the trailer promises an out-and-out action film. Though Vijay's character name was thought to be just Leo Das, he is also called 'Parthi' in the trailer cuts. Trisha, Sanjay Dutt, Arjun Sarja, Gautham Menon, Misskin, Mathew Thomas, Mansoor Ali Khan, Priya Anand, Sandy, Janani, Abhirami Venkatachalam and Babu Antony are also part of the movie.