[MOVIE]: Phineas and Ferb The Movie: Across the 2nd Dimension (2011)

### Database URL

https://www.themoviedb.org/movie/71689

### YouTube Theme Song Video URL

https://www.youtube.com/watch?v=HEHHW0_kHfg&t=1s

### Additional Information

- [x] This is a replacement request. If checked, please provide a reason below.

### Replacement Reason

_No response_

Start by checking the existing database record for Phineas and Ferb The Movie: Across the 2nd Dimension against the provided TMDB URL and YouTube theme-song URL. Confirm what replacement is requested, since the issue gives no reason or specific change. Done means the appropriate movie entry reflects the verified replacement and the record remains valid.

Written by the indexing model from the issue text.