The David Tennant Treat 4 Today today is from his 1998 movie LA Without A Map.
David plays a British writer called Richard who sets off from Bradford, Yorkshire to try his luck in Hollywood. It's a comedy and shows David's great comic timing throughout the film.
This film co-starred Johnny Depp playing himself (in posters) and according to IMDB he did not make any money from his cameo role. David on the other hand is reported to have bought his flat with his fee from this movie!