Mumbai: Bollywood megastar Amitabh Bachchan may have been in the film industry for four decades now but he feels the stardom of an actor is transitory as a new superstar is born in every 5 to 10 years.
The 72-year-old actor said the way a sportsman's play gets restricted after a certain age, an actor's work also gets limited due to the physical changes that come with age.
"Like sportsmen don't play too much after a certain age as they are physically weak after a while, similarly when actors get old, their face changes. There comes a time when an actor does not fit certain characters and films.
"If that happens one has to stop working. There will be new young people and audience. I feel my time has gone now. I am at the back now. In every 5 or 10 year there will be a new superstar and you have to bow down in front of them," Bachchan said in an interview here.
The evergreen star is the one of busiest artist at his age and Bachchan feels lucky that he has worked with different generations of actors and learnt from them.
"I am gifted by the Almighty that I have worked with four generations and I have learnt so much from all of them. I learn everyday on the sets. The average age of an actor is from 25 to 30 in the industry now and with me there is a difference of 40 odd years. But, I do observe them everyday and try to learn from them," he said.
Bachchan is amazed to see transformation in filmmaking process over the years from the technology to the detailed planning for a movie. "Earlier, only Salim-Javed (Salim Khan and Javed Akhtar) used to come with a bound script but now everybody comes with a bound script," he said. The change which has impressed him the most, however, is the increased number of females in the industry.
"There used to be only heroines and mothers but now there are more women than the males and that's what I like. They all are very efficient and capable in their work right from the sets to costume to the production work."
Bachchan said son Abhishek has just a passing shot in 'Shamitabh'. "We were shooting at the airport and Abhishek landed there at that point of time. He came into the frame and Balki captured him," the actor said.
The father-son were last seen in National award-winning 'Paa'. Bachchan said he would love to reteam with Abhishek if a good script comes their way. "I hope someone comes with a script for me and Abhishek. Someone has to come with a suitable script and if that happens, we will do the film," he said. His daughter-in-law Aishwariya Rai Bachchan is making her comeback with Sanjay Gupta's 'Jazbaa'.
"It's a good thing that she is coming back on screen and no one has ever stopped her to work," Bachchan said.