Sydney Sweeney and Glen Powell looked cozy and glamorous at the premiere of their new film, Anyone But You, in New York on Monday night.

The co-stars, who play love interests in the romantic comedy, have been the subject of speculation about their off-screen relationship ever since they started filming together.

Sweeney, 26, stunned in a silver crystal-embellished sheer gown that showed off her curves, while Powell, 35, wore a light blue double-breasted suit and a white t-shirt.

The pair posed for photos on the red carpet, smiling and flirting with each other. They also shared a hug and a kiss on the cheek, sending fans into a frenzy.

Earlier in the day, Powell gushed over Sweeney during a joint interview on the Today show, where he denied any romance but admitted they 'love each other'.

Host Hoda Kotb asked them: 'Is this like a little romance?'

Powell and Sweeney laughed, before Powell said: 'No, but we do love each other. And, honestly, this is one of the most spectacular humans I've ever met. She's really great.'

Kotb replied: 'Aw, well ya'll are so cute together.'

The chemistry between the co-stars has been evident since they started working on Anyone But You, which is set to hit the theaters on December 22.

The film follows two strangers who agree to be each other's plus-ones for a year of weddings, only to fall in love along the way.

Last month, Sweeney, who is engaged to Jonathan Davino, 40, left a flirty comment on Powell's hunky Men's Health magazine cover, where he showed off his six-pack abs.

'Just heating up everybody's winter huh?' she wrote.

Powell addressed the romance rumors in the accompanying interview, calling them 'disorienting and unfair'.

'When all that stuff happened, you know, publicly, it felt disorienting and unfair,' he said, adding, 'But what I’m realizing is that’s just a part of this gig now.'