According to Kyle Hebert’s blog (FUNimation voice actor and voice of Adult Gohan), Chris Sabat will not be voicing Shenron in the upcoming Dragonball live action film.

I ran into good ol’ Chris Sabat (DBZ director, voice of Vegeta, Yamcha, Piccolo, Mr. Popo, Shenron, etc)  while I was recording at Funimation today and asked him since his name is listed on the movie’s credits on IMDB and numerous message boards have been buzzing about this for months.  The answer, I was told, is no.

Source and thanks goes out to DBTheMovie for the info.