Sienna Miller & Bennett Miller Couple Up at U.S. Open Finals!

Sienna Miller sits in a private box with her boyfriend, director Bennett Miller, at the finals of the 2016 U.S. Open on Sunday (September 11) at the USTA Billie Jean King National Tennis Center in New York City.

The couple was joined in the box by Peter Sarsgaard, Josh Groban, Debra Messing, and James Spader, among others.

Also spotted in the crowds at the match were Damian Lewis and Kevin Spacey (with his manager Evan Lowenstein).

Sienna starred in the movie Foxcatcher, which was directed by Bennett. He previously was linked to Ashley Olsen.