Boku no Chikyuu wo Mamotte: Alice kara, Rin-kun e

Please Save My Earth Movie: From Alice to Rin-kun is a two-hour movie narrated by Alice, reminiscing on the events of the OVA as she is on her way to meet with Rin in a park. The "present day" scenes of Alice and Rin from the movie add scenes that were not present in the manga.
(Source: Wikipedia)