Salma Hayek got political at this year's Cannes Film Festival.

During the red carpet premiere of her animated film, "The Prophet," Hayek held up a "#BringBackOurGirls" sign in support of the 230 Nigerian girls from the Chibok Government Secondary School who were kidnapped by Boko Haram terrorists on April 15.

USA Today reported that Hayek broke the festival's non-political tradition by holding up the "#BringBackOurGirls" sign.

The elite festival, which takes place in Cannes, France, each year in May, is generally reserved for glamour and celebration of film. Anything outside of the strict glamour and film guidelines is usually prohibited.

Though Hayek's act of political awareness was unconventional for the typically posh event, the now global #BringBackOurGirls movement has proven to be significant enough to get a pass on the Cannes red carpet this time around.

"It's rare," Cannes Film Festival director of communications Marie-Pierre Hauville said to USA Today in regards to Hayek's sign. "But clearly this is happening all over the world and was a personal impulse."

Other stars that acted on their "personal impulses" in Cannes include the cast of the Turkish film "Winter's Sleep," Fox News said.

On Friday, during the "Winter Sleep" premiere, the cast held up signs with "#Soma" to bring light and pay tribute to the 301 people killed during a coal mine explosion and fire in Soma, a town and district of Manisa Province in Turkey.

As the trend of celebrities and public figures' hashtag activism continues to grow, so does the controversy over whether a hashtag is enough.

First lady, Michelle Obama recently took part in the #BringBackOurGirls movement and received overwhelming backlash for her lackluster attempt to actually bring back the girls.

Conservative radio host Rush Limbaugh recently slammed the Twitter hashtag campaign and criticized the First Lady.

"I just think this is pathetic. I'm just stunned," Limbaugh commented on his radio show.

"We got 300 Nigerian girls kidnapped by an al-Qaida group, and nobody cared or talked about it for a while. ... Now all of a sudden, for some reason, we're on a big push to get them back, and this is how?"

Check out Limabaugh's full commentary below.

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