How old was Sienna Miller in The Mysteries of Pittsburgh?

When watching a memorable performance, one might wonder how old a celebrity was at the time. It helps us understand the context in which they took on the role. Read on to find out the age that accompanied the spotlight.

In the movie The Mysteries of Pittsburgh, Sienna Miller was:

26 years old

According to our findings, that was the correct age of the celebrity.

Our method involved using the first calendar day of the release year of The Mysteries of Pittsburgh:

January 1, 2008

And the date of birth of Sienna Miller, which is:

December 28, 1981

Since the release usually follows filming within a year, the age of Sienna Miller during the actual shoot may have been a year more or less than indicated.