Some TV prints of the film retain the Transamerica/UA production logo, which is now frequently edited out of other UA films of that period.
The present (2004) US DVD copies that have different main titles (as stated above) also have slightly different end titles with a different Churchill quote ("The end of the beginning" rather than the one about "the few"). Since William Walton originally was supposed to write the entire score, one might also presume that these alternate main credits were the ones originally intended before Maurice Binder and Ron Goodwin (whose Battle of Britain Theme over the end credits has been replaced with Walton music) were brought in.
In some prints of this film, the scenes involving Hitler and the Nazis (not to mention other scenes in Polish) are not subtitled at all, and the audience watching the film has no idea what the Germans are planning.
The DVD version is struck from a slightly different widescreen print than the VHS version (which is pan-and-scan except for the titles), as the distinctive main titles (created by Maurice Binder) have been greatly simplified and titled 'The Battle of Britain'. Sir William Walton is given credit for the music, though only 'Battle in the Air' and his 'Battle of Britain March' appear in the film; the rest of the soundtrack is composed by Ron Goodwin.
The 2004 U.K. DVD release features two audio versions of the film: the original theatrical release audio featuring Ron Goodwin's score, and a secondary audio track with the restored William Walton/Malcolm Arnold score. A surviving member of the film crew painstakingly tracked down and restored the Walton session recordings.
The 2004 UK DVD issue also restore the "original" Maurice Binder Main Title credits.