Stallone working on his own biopic

Los Angeles: Actor Sylvester Stallone is planning to bring his own life story to the big screen, says his mother.

The `Rocky` star is focused on making a movie about his upbringing and lengthy career in Hollywood, reports a website.

"Sylvester is doing the story of his life, his own biography. He`s got `Rambo V` to film and he`ll be going to Budapest to begin the `Expendables 4` - so he`s filming his biopic in between," his mother Jackie was quoted by a newspaper as saying.

The 68-year-old, who has been in Hollywood for over four decades, is best known for doing action movies like the `Rocky` and `Rambo` series. He has even directed movies like `Rocky II`, `Rocky III` and `Rocky IV`.