Buzz surrounding Megastar Chiranjeevi's 151st film is intensifying even before he wraps up the shooting of his 150th. Other day a surprise guest at shooting spot has stunned all.At the shooting spot of Chiranjeevi's "Khaidi No 150" other day, we hear that magical writer-director Trivikram has turned up. He has held nearly 2 hour long discussions with Chiranjeevi at the sets. Many are saying that this discussion is nothing but about their next film.With Trivikram occupied with Pawan Kalyan's movie from January, when will he direct Megastar?