EXCLUSIVE: Rachel McAdams Turns Heads at 'Doctor Strange' Premiere, Talks Adorable Ideal Superpower

She dreams of being invisible, but for the sweetest reason!

Rachel McAdams continues to be America's sweetheart!

The Doctor Strange star attended the Los Angeles premiere of her new Marvel film on Thursday in a stunning champagne-colored gown from Versace.

MORE: Rachel McAdams Reveals What Co-Star Benedict Cumberbatch Really Thinks of His Diehard Fans

"It's a fine fit they do!" the 37-year-old actress gushed to ET's Nischelle Turner on the red carpet.

And though her glam look was on-point, McAdams admitted she hasn’t always felt that way about her style picks. When asked what she would do over if she could manipulate time like Doctor Strange, the seasoned star replied, "Maybe some fashion choices. I was a figure skater so I would probably take back a few of those spandex-y outfits, take away some of the glitter."

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McAdams also had an ideal superpower in mind -- invisibility -- but she doesn't mean in a "super creepy" way.

WATCH: EXCLUSIVE: How 'Doctor Strange' Star Benedict Cumberbatch Feels About Being Called the 'Internet's Boyfriend'

"I would like to be able to go into people's houses and see their decorating," she adorably tells us. "You know, when you're driving at night, and you're looking through the window, and you're like, 'It looks so cozy in there. I wish I could get a free pass to go inside!'"

For more from McAdams' Doctor Strange co-star, Benedict Cumberbatch, watch ET's exclusive interview below!