Actress Jennifer Lawrence falls as she walks up the steps to accept the award for best actress for her role in "Silver Linings Playbook" at the 85th Academy Awards in Hollywood, California February 24, 2013. [Photo/Agencies]

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Heston, the founder of publicity firm MHA Media whose success stories include introducing Jimmy Choo shoes and Lebanese designer Saab to Hollywood, said the Oscars red carpet is today dominated by established luxury brands.

"For young designers, finding their way into this world, it's really difficult," Heston said. "It's much more difficult to get successful placements for the big events when the eyes of the world are watching, the stakes are higher and there are more people in the game."

With the red carpet in mind, many of the top fashion houses have created capsule couture lines, such as Chanel Haute Couture, Atelier Versace, Armani Prive and Gucci Premiere, which are the highest of the high end.

For British designer Georgina Chapman, co-founder of Marchesa, the red carpet launched her then-unknown brand in 2004 when actress Renee Zellweger wore a red and gold Marchesa dress to the premiere of "Bridget Jones: The Edge of Reason."

"The next day, the dress was on the cover of every single newspaper and there was Marchesa written as well. And it really hit home that this is what a red carpet can do for a brand," said Chapman, who is married to one of Hollywood's most powerful men, film producer Harvey Weinstein.

The pinnacle for Marchesa came in 2010 when Sandra Bullock won the best actress Oscar wearing a gold sequined gown by the brand. Chapman said the dress received 40 million mentions in media.