Source: Entertainment Weekly

Despite riding the wave of a massive career resurgence, Robert Downey, Jr. wonders if his days as a movie star are numbered. While promoting his upcoming tentpole release Sherlock Holmes, the two-time Oscar-nominee expressed doubts about his future. "I can only be a guy on a call sheet probably, I don’t know, maybe a couple more times. It’s something I’m so grateful to have in my palm, and yet I already see its inevitable decay.”

Much like New Moon director Chris Weitz, who also told the press that he was contemplating retirement, Downey expresses an interest in doing other things with his time such as painting and reading.

After a rocky patch marred by drug arrests, Downey Jr. climbed back into the public eye with Shane Black's popular action film Kiss Kiss, Bang Bang and then shot all the way up to superstardom again in 2008's Iron Man, which grossed a surprise $318.2 million domestically. Downey has already finished shooting next year's highly-anticipated sequel with Mickey Rourke and Sam Rockwell, but he'll first be seen in Sherlock Holmes, which opens everywhere on Christmas Day.