Audio problem: In the Bastille dungeon just after Phillippe knocked out the guard with the key we hear Athos say 'We feared the mask would destroy you', but his lips do not move in sync with this. It looks more like he originally said 'We thought you were dead'. (01:44:54)
Audio problem: At the mask-ball, when Louis is seeing iron masks everywhere and rushes out, the music suddenly stops, but in the background we can see the violinists still playing (moving their bows) - we don't hear any sound.
Answer: Both Louis and Philippe are actually D'Artagnan's children. This is why D'Artagnan continues to defend Louis for much of the early part of the film, despite the King's callousness, because he feels that he must defend his son, even against his oldest friends. It's only when he discovers Philippe and realises that he has another son, a humble and decent man, that he's finally able to feel pride as a father and can stand against Louis and his excesses.
Tailkinker ★