Sonic the Hedgehog[a] is a 2020 adventure comedy film[6] based on the video game franchise published by Sega. The film is directed by Jeff Fowler (in his feature directorial debut) from a screenplay by Pat Casey and Josh Miller. It also stars James Marsden, Jim Carrey as Doctor Robotnik, and Ben Schwartz as the voice of the title character. In the film, Sonic teams up with a small-town sheriff named Tom as he attempts to escape Dr. Robotnik and the government.

In 2013, Sony Pictures acquired the film rights to the franchise, and by 2014, had a movie adaptation in development. Fowler was hired to direct in 2016. After Sony put the project in turnaround, Paramount Pictures acquired it in 2017, and the majority of the cast had signed on by August 2018. Filming took place between September and October 2018 in Ladysmith and Parksville, both on Vancouver Island, and in Vancouver, British Columbia, Canada.

Sonic the Hedgehog was initially scheduled to be released in the United States on November 8, 2019, but after an overwhelmingly negative reaction to the first trailer, Paramount delayed the film to redesign Sonic, whose original design was highly criticized. The redesign was shown in a new trailer which was well-received for its tone and humor, with Sonic's new appearance receiving particular praise.

The film premiered at the Paramount Theatre on January 25, 2020, and was theatrically released in the United States on February 14, 2020. The film received mixed-to-positive reviews from critics, praising the cast performances (particularly Carrey's), Sonic's design, and its faithfulness to the source material, but criticizing the plot.