Trial has been delayed by a month for actress Shailene Woodley, who faces charges in North Dakota related to her protest against the Dakota Access pipeline.
The Divergent star was among 27 activists arrested on October 10, and she live-streamed her arrest on Facebook.
She's pleaded not guilty to criminal trespass and engaging in a riot, both misdemeanours that carry a maximum punishment of a month in jail and a $1,500 (£1,204) fine.
Shailene was to stand trial on January 25, but court documents show the trial has been rescheduled for February 22 because her attorney had a conflict.
The Standing Rock Sioux want construction of the $3.8 billion (£3 billion) pipeline halted, saying it threatens drinking water and cultural sites.
Nearly 470 people have been arrested in months of protests supporting the tribe.