Complex sentence: In 2012, Larson appeared as Molly in the film adaptation of the popular 1980s TV show "21 Jump Street", co-starring with Channing Tatum and Jonah Hill.
Split into simpler sentences: In 2012, Larson appeared in the film adaptation of the popular 1980s TV show "21 Jump Street". She played Molly, co-starring with Channing Tatum and Jonah Hill.