Complex sentence: In the film, Lang is recruited by Captain America and fights alongside the Avengers against the Sokovia Accords and provides a distraction for Captain America and Winter Soldier to escape in the Quinjet to Siberia by increasing in size, becoming Giant-Man.
Split into simpler sentences: In the film, Lang is recruited by Captain America and fights alongside the Avengers against the Sokovia Accords. He provides a distraction for Captain America and Winter Soldier to escape in the Quinjet to Siberia by increasing in size, becoming Giant-Man.