Emma Stone reportedly broke her shoulder after 'falling from a friend's shoulders' at a Spice Girls reunion gig.
The actress attended one of the girlband's Wembley shows earlier this month.
A source told The Sun that the injury could impact upon her filming schedule for Disney's live-action prequel Cruella.
"Emma relocated to the UK for the summer to throw her all into this movie - it was a great opportunity to be a classic villain," the insider told the publication.
"But she's a massive Spice Girls fan and got carried away at their concert and fell off a pal's shoulders while she was partying.
"She thought it was just bruised initially, but has now discovered it's actually broken.
"She's gutted about such a serious injury. She needs to be in top physical condition for the role, which is active and involves running around after dogs."