Emma Watson Celebrates 24th Birthday on 'Regression' Set - See the Photos!

Emma Watson gets into period costume while prepping to film scenes for her new movie Regression on Tuesday (April 15) in Toronto, Canada.

The actress was celebrating her 24th birthday that day, which also happened to be the first day of filming for the new thriller.

PHOTOS: Check out the latest pics of Emma Watson

“First day shooting Regression today – a very cool birthday present 😊 xx” Emma tweeted to her fans.

Regression also stars Ethan Hawke and follows a father accused of a crime he has no memory of committing.