As the leading lady, it would be kind of helpful if your female co-stars didn’t steal your thunder.

But Emma Watson had a little competition on her hands tonight in the guise of Nina Dobrev.

The girls both graced the premiere of their new film The Perks Of Being A Wallflower at the Toronto Film Festival in Canada.

Co-stars: Emma opted for something a little more practical than Nina Dobrev’s floaty number

Say cheese: Emma looked a little serious as she took to the red carpet in Canada

Of course, Emma looked nothing short of fabulous in her sleeveless and floral embroidered dress from Erdem’s pre-spring 2013 collection. Yet, Nina was hot on her heels in a striking backless gown.

The Vampire Diaries actress was certainly pleasing on the eye for her ever-growing fanbase, posing with her hands on her hips and showing off her trim frame in the black and white ethereal creation.

Clearly excited ahead of the festivities, Nina tweeted: ‘Getting ready for #perksofbeingawallflower premiere at #tiff… In the car on my way to @WallflowerMovie #tiff.’

Stealing her thunder: Nina looked sensational in her backless gown

She later added: ‘Ready #tiff #perksofbeingawallflower.’

Meanwhile, the Harry Potter beauty remained quiet on the social networking front.

Emma, 22, recently spilled the beans about her red carpet looks though, confessing she invests in a stylist as she can’t show up in ‘Converses or whatever I bought from High Street.’

Help from the stylist: Emma recently said she invests in advise so she doesn’t turn up in her Converse

Speaking to Glamour USA, the British star said: ‘I have to at this point [have a stylist].

‘When I was younger, I used to do it all myself, but I’ve had to get help as… I can’t show up in my Converses or whatever I bought from High Street. Just practically, these gowns are ridiculous.

‘You’re being photographed from every angle, not only do you have to consider how the thing looks, but whether you’re going to be able to sit in it and if people are going to be able to see up your skirt.’

Who is the fairest of them all? The girls both signed autographs for fans

The Perks Of Being A Wallflower also stars We Need To Talk About Kevin actor Ezra Miller and Percy Jackson heartthrob Logan Lerman, and sees two seniors who take a shy freshman under their wings.

Both hunks were in attendance tonight, alongside Johnny Simmons and actress Mae Whitman, with Logan opting for a conservative look in his suit and Ezra in a quirky velvet jacket and red waistcoat.

Noticeably absent was Emma’s real-life leading man Will Adamowicz, whom she has been dating since the end of last year.

Despite public displays of affection at Coachella in April and during outings while running errands, the Oxford University student tends to avoid the spotlight.

Source: dailymail.co.uk