How old was Sylvester Stallone in F.I.S.T?

When watching a memorable performance, one might wonder how old a celebrity was at the time. It adds depth to our understanding of a celebrity’s experience. We’ve tracked down that detail for you.

The age of Sylvester Stallone while starring in F.I.S.T was:

31 years old

That’s the confirmed age we calculated for the celebrity in that role.

The age was estimated using the initial day of the year F.I.S.T came out:

January 1, 1978

And the day in which Sylvester Stallone was born:

July 06, 1946

Given that most films are released within a year of production, the actual age of Sylvester Stallone during filming may have varied by one year from the shown age.