Christian Bale, that you, boy? The 39-year-old actor underwent a shocking transformation on set the new David O. Russell ("Silver Linings Playbook") film Thursday in Massachusetts, sporting ill-fitting clothes, tinted shades and a painfully scraggly combover. The film, slated for release at the end of the year, also co-stars "Silver Linings" leads Bradley Cooper and Jennifer Lawrence.

Bale's onscreen versatility is well-documented: He famously shed 63 pounds for 2004's "The Machinist," only to majorly beef up again as Batman in Christian Nolan's blockbuster "Dark Knight" trilogy.

christian bale combover

Also on HuffPost:

Loading Slideshow...
  • Steve Jobs, Ashton Kutcher

  • Princess Diana, Naomi Watts

  • Elizabeth Taylor, Lindsay Lohan

  • Julia Child, Meryl Streep

  • Mark Zuckerberg, Jesse Eisenberg

  • Frida Kahlo, Salma Hayek

  • Edith Piaf, Marion Cotillard

  • Amelia Earhart, Hilary Swank

  • Dorothy Dandridge, Halle Berry

  • Marie Antoinette, Kirsten Dunst

  • Margaret Thatcher, Meryl Streep

  • Marilyn Monroe, Michelle Williams

  • Queen Elizabeth II, Helen Mirren

  • Selena, Jennifer Lopez

  • Gia, Angelina Jolie

  • Abraham Lincoln/Daniel Day-Lewis