Kristen Stewart's 'American Ultra,' Ryan Gosling's 'La La Land' Get Release Dates

Lionsgate also pushed back the release of 'Power Rangers' and 'Gods of Egypt.'

Lionsgate set release dates for the Kristen Stewart film American Ultra and the Ryan Gosling and Emma Stone-starring musical, La La Land, while shifting dates for several of its other films including Power Rangers, Criminal, Dirty Grandpa and Gods of Egypt.

American Ultra, directed by Nima Nourizadeh, will open on Aug. 21, 2015. Along with Stewart, the film stars Jesse Eisenberg, Walton Goggins, Connie Britton and Bill Pullman. It centers on a stoner and his girlfriend, whose lives are threatened when a government operation comes into town to wipe him out.

La La Land is the next film from Whiplash helmer Damien Chazelle. The modern take on the Hollywood musical revolves around Sebastian (Gosling) and Mia (Stone), who are drawn together by their common desire to do what they love, but as success mounts, they are faced with decisions that begin to fray the fabric of their love affair. Summit will release the film on July 15, 2016.

Lionsgate shifted its Power Rangers project to Jan. 13, 2017. The previously scheduled date was July 22, 2016.

Gods of Egypt, from Summit, also has been moved back, from Feb. 12, 2016, to April 8, 2016.

Criminal has been shifted back as well, to Jan. 22, 2016. It previously was set at Aug. 21, 2015.

Lastly, Dirty Grandpa, starring Zac Efron and Robert De Niro, actually has been pushed up to Feb. 26, 2016, from a previously scheduled date of Aug. 12, 2016.