Hollywood stars in disguise

Christian Bale in The Machinist. (GETTY/Agencies)

Hilary Swank in Million Dollar Baby in 2004. (GETTY/Agencies)

Jake Gyllenhaal in Jarhead. (GETTY/Agencies)

Jessica Biel in RIPPED for Blade: Trinity in 2004. (GETTY/Agencies)

Natalie Portman in Black Swan in 2010. (GETTY/Agencies)

Ryan Reynolds in Blade movies. (GETTY/Agencies)

Matt Damon in Courage Under Fire. (GETTY/Agencies)

Charlize Theron in Monster. (GETTY/Agencies)

Renee Zellweger in Bridget Jones's Diary movies. (GETTY/Agencies)

Tom Hanks in Castaway in 2000. (GETTY/Agencies)