I am very puzzled and intrigued now by this mysterious documentary. The only Galliano shows with crinoline dresses I know are his Spring RTW 1994 collection and Givenchy Couture Spring 1996 (John designed RTW Fall 1996, HC Spring and HC Fall 1996 and Spring 1997 for Givenchy before he was appointed to create for Dior and McQueen took his place for Givenchy). I definitely know Julia was in Spring 1994, because I have pictures of her in this show. I checked Givenchy HC Spring 1996 but no sign of her there. Quite intriguing! I'll probably need to investigate more.
BTW, here's Julia for the other designers.
Dries van Noten Fall 1997: