The 73-year-old actor took to Twitter to praise the fantasy-adventure.
"Being the voice of the Big Friendly Giant of the Steven Spielberg film in Hindi.. A fascinating tale...," he tweeted.
"The BFG" is based on author Roald Dahl's eponymous 1982 novel of the same name.
Original cast of the project includes Oscar-winner Mark Rylance, playing the 24-feet-tall gentle giant BFG and Ruby Barnhall playing Sophie, the orphan who becomes friends with the BFG.