Based on a YA book trilogy by Patrick Ness and a rewritten screenplay by Charlie Kaufman.
If you think Tom Holland and Daisy Ridley look younger than you’d expect, you’re correct. The movie was filmed in 2017, reworked in 2018 due to poor test screenings, and originally was supposed to launch in 2019. Reshoots instead happened in 2019 because both actors were busy with their tentpole franchises in 2018.
The movie has the same wig issues Fantastic Four had. There’s a clear difference between Ridley’s hair in original shots and the reshoot.