Scarlett Johansson put her massive engagement ring on display during a big day of promotion duties at the Toronto International Film Festival last night. First, the actress mingled with Jessica Chastain while rocking a retro hairdo during a press conference. Later, Scarlett changed into a Vivienne Westwood frock to premiere one of her newest projects, Under the Skin, with the film's director, Jonathan Glazer. 
 
 Scarlett's appearance at TIFF marks her first public outing since she confirmed that she is engaged to Romain Dauriac. Questions about Scarlett's engagement status first popped up at the Venice Film Festival last week when she stepped out with a diamond ring on her finger. She later confirmed that she is indeed engaged to Romain, a French magazine editor. Scarlett won't have any downtime in the coming weeks as she is expected to fly to New York to attend the premiere of Don Jon on Thursday. 

 The stunning Scarlett Johansson joins Roz Weston in our ET Canada Festival Central Lounge to talk about her film, Under The Skin, premiering tonight at TIFF. But right before the film festival launched, the star got engaged to French journalist, Romain Dauriac, and she didn't hesitate to talk about the timing of her happy news. 
 
 When Roz asked, "best or worst timing for getting engaged?" Scarlett admitted, "My friend was like 'congrats on timing,' ... things work out the way they do, maybe it's better just to get it out the way." 
 
 Check out the close-up of her engagement sparkler! 
 
 On the film, Under The Skin, the actress says she first saw it with an audience in Venice, but she reveals: "It is the last time I will see it with an audience, the making of the film is very personal and the journey itself is a personal one. I felt like I was waiting for people to get up and leave." 
 
 So, it's safe to say that Scarlett will not be staying for tonight's screening at TIFF after her red carpet appearance. 
 
 Watch Scarlett sign the Moet magnum for charity in our our Festival Central Lounge below and scroll down to see Roz's iPad Vlog about his interview with the beauty.
– The notoriously private Scarlett Johansson actually opened up—a bit—about her engagement to Romain Dauriac. The news broke right before ScarJo arrived at the Toronto International Film Festival, where she of course had to face a bunch of reporters, so ET Canada asked her whether it was the "best or worst timing for getting engaged." Her response: "My friend was like 'congrats on timing,' ... things work out the way they do, maybe it's better just to get it out [of] the way." Click to see her huge engagement ring.