The 77-year-old Oscar winner has become a fan of the "Slumdog Millionaire" star and says she will be watching his career closely, reported Contactmusic.
"He's probably got more energy than any actor I've met in 56 years of being in the theatre. He is a powerhouse, like a very strong battery and he always wants to try new things; each take is never quite the same so it's very, very exciting. Plus, he's utterly delightful and I will watch his career fantastically closely," Dench said.
The comedy-drama directed by John Madden also stars Celia Imrie, Bill Nighy, Ronald Pickup, Maggie Smith, Tom Wilkinson and Penelope Wilton, and will hit theatres in India on May 18. PTI JCH