This is the most comprehensive resource for the franchise. While they may not always host a linear text document of the entire movie from start to finish, they host detailed episode and movie guides. You can often find a "Full Transcript" sub-page or read the detailed plot summary which includes key dialogue exchanges.
Ben 10: Destroy All Aliens is a 2012 American computer-animated science fiction comedy film based on the Cartoon Network animated television series Ben 10: Alien Force. The movie follows Ben Tennyson and his alien friends as they face off against a powerful villain known as Vilgax. ben 10 destroy all aliens transcript link
Ben: (as Four Arms) Don't worry, Gwen! I've got this! This is the most comprehensive resource for the franchise
The full transcript for the 2012 CGI movie Ben 10: Destroy All Aliens is primarily hosted on the Ben 10 Wiki . This resource provides a beat-by-beat breakdown of the dialogue, starting from the prologue where Ben and Gwen find themselves inside the Omnitrix on Petropia. Where to Find the Official Transcript Ben 10: Destroy All Aliens is a 2012
The "body-swap" trope is used effectively to teach empathy.