Amanda Seyfried is all grown-up. And she blossomed from a wide-eyed ingénue into a sought-after leading lady in record time. Can you believe it’s been almost 10 years since her oft-quoted turn as Karen Smith in Mean Girls?

But while the 27-year-old star of the forthcoming Lovelace has been making a steady climb in Hollywood, her red carpet fashion journey has been more of a rocky road, sometimes leaving us asking why.

Amanda Seyfried Style Actress Amanda Seyfried arrives at the Las Vegas premiere of the movie 'Lovelace' at Planet Hollywood Resort & Casino on August 4, 2013 in Las Vegas, Nevada.

In the beginning, there were some serious stumbles – and there was denim. Yes, the budding starlet rocked jeans on the red carpet to more than one premiere, presumably opting for function over fashion, much to the chagrin of critics everywhere. But that’s not all.

Scattered among the Levi's were some equally puzzling ensembles in unflattering shapes and fabrics, plus scads of ill-proportioned dresses that were screaming for a tailor. Seyfried’s self-described “boxy frame” saw no justice in the early years, and it wasn’t until the world premiere of Mamma Mia! in London that we saw a glimmer of the style star we know today. The doe-eyed actress donned an emerald green Miu Miu cocktail dress that finally matched her talent. The good news continued throughout much of the press tour. Things were suddenly looking up.

Amanda Seyfried Actress Amanda Seyfried arrives at the World Premiere of Mamma Mia! The Movie at the Odeon Leicester Square on June 30, 2008 in London, England.

As Seyfried found her fashion footing, she began to take risks and grow in confidence, thereby establishing some of her signature styles. She fancied higher hemlines and leggy looks, and you could often find her in a low strappy heel. Dressy shorts teamed with intricate tops or jackets became her go-to style. And she swapped out her dungarees for designer duds from Valentino, Giorgio Armani and Louis Vuitton.

While Seyfried has certainly made her share of rookie style mistakes over the last decade, her recent run during the worldwide media tour for Les Miserables made us take note. From premieres to press lines, Seyfried could be found modeling swoon-worthy looks from Balenciaga, McQueen, Nina Ricci and, her favorite, Marios Schwab. Though she wasn’t the film’s biggest star, when it came to the red carpet, Seyfried outshone her gal pal, Anne Hathaway, on more than one occasion.

Amanda Seyfried Style Actress Amanda Seyfried arrives at the Oscars at the Dolby Theatre on Sunday Feb. 24, 2013, in Los Angeles.

The fashionable face-off even went so far as to cause a rumored raucous at this year’s Academy Awards. Remember how Hathaway made a last-minute dress swap because it was remarkably close to her co-star’s McQueen dress? Let’s just say there may or may not be a pale pink Prada apron-front dress catching a few bids on EBay right now. But we digress.

Seyfried has mastered pretty and classic with a twist. And she’s established herself as one of the more polished and unique dressers in Hollywood. These days, her risk-taking is revered, turning heads for all the right reasons. Her latest press tour for Lovelace is certainly a testament to that. She flirted in a pink-and-white houndstooth Balmain suit on Letterman and worked the press line at the MoMA in a strapless ruffled denim dress from her current fave, Givenchy. (Seyfried is the new face of both Givenchy’s Fall 2013 ready-to-wear campaign and its Very Irrésistible fragrance.)

Amanda Seyfried Style Actress Amanda Seyfried attends The Cinema Society and MCM with Grey Goose screening of Radius TWC's 'Lovelace' at MoMA on July 30, 2013 in New York City.

We have big love for this fresh-faced starlet. From the good to the bad to the downright gorgeous, Seyfried promises to have a long and glowing career on and off the carpet. And we’ll be watching every minute.

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Sam Saboura is best known as the host of TLC’s hit series "Something Borrowed, Something New." He has appeared as the fashion and style expert on numerous entertainment, news, and awards programs, and his sought-after style advice regularly appears in national publications. He is a personal shopper and stylist for celebrities in the film, television, and music industries, and the author of Sam Saboura’s Real Style.