Photos:: Reese Witherspoon’s red carpet looks

Witherspoon wore a white Giorgio Armani gown at the 2015 SAG Awards.   (Top left: Ethan Miller / Getty Images; Bottom left, center and right, Frazer Harrison / Getty Images)

The “Wild” nominee opted for this elegant Calvin Klein gown for the 2015 Golden Globes.  (Frazer Harrison / Getty Images)

Reese Witherspoon wore a fun polka dot dress from Michael Kors to the Palm Springs International Film Festival Awards Gala on Jan. 3.  (Jason Merritt / Getty Images for PSIFF)

The “Wild” star slipped into a white Zac Posen dress for the film’s premiere on Nov. 19, 2014 in Los Angeles.   (Frazer Harrison / Getty Images)

Reese Witherspoon poses in a black and red J. Mendel gown in the press room at the Hollywood Film Awards on Nov. 14, 2014.  (Jason Merritt / Getty Images)

Witherspoon donned a red Calvin Klein Collection dress at the 2014 world premiere of “Gone Girl,” which she produced.   (Dimitrios Kambouris / Getty Images)

For the 2014 Golden Globe Awards, Witherspoon appeared in a Calvin Klein T-back.   (Jason Merritt / Getty Images)

An Oscar winner for 2005’s “Walk the Line,” Witherspoon chose this blue Louis Vuitton gown for the 2013 Academy Awards.  (Jason Merritt / Getty Images)

Witherspoon wore a Versace gown -- and a baby bump -- to the world premiere of “Mud” during the 2012 Cannes Film Festival.  (Andreas Rentz / Getty Images)

Witherspoon modeled a little Louis Vuitton dress at the U.K. premiere of “This Means War” on Jan. 30, 2012.  (Gareth Cattermole / Getty Images)

Witherspoon sported a fiery Zac Posen number at the 2012 Golden Globes.  (Frazer Harrison / Getty Images)

Witherspoon arrived at the 2011 Academy Awards wearing this classy Giorgio Armani Privé dress.  (John Shearer / Getty Images)

Witherspoon wore Nina Ricci to the 2007 Screen Actors Guild Awards.  (Vince Bucci / Getty Images)

Reese Witherspoon went retro at the 2006 Academy Awards, where she arrived in a vintage Christian Dior gown.  (Frazer Harrison / Getty Images)