By chance just after Prêt-à-Porter, I watched Roman Polanski's Frantic (1988), which is also largely set in the Grand Hôtel.
And at that time, the hotel is almost unrecognizable.
No doubt out of a desire to modernise the interior design, and to resemble the new hotels of the time (the Concorde Lafayette, now Hyatt Regency, PLM Saint-Jacques, now Marriott Paris Rive Gauche, Le Méridien Montparnasse, now Pullman, or Le Méridien Etoile, well still Méridien despite its age and room size), the Grand Hôtel had removed at that time all signs of the past.
The hotel then looks more like Orly airport than a hotel with character.
It is disturbing to see how the movement has now been completely reversed.
Harrison Ford giving the name of the hotel where he stays
Exterior
Lobby
Corridor
Room 402
Breakfast

Bathroom
What is supposed to be the room’s view. But it is no possible as the view is over the Garnier Opera …but also the InterContinental itself (and Café de la Paix)
Welcome gift. Harrison Ford says: Oh, it’s a fine room. And fruits, that’s nice!
Betty Buckley answering: I would have preferred flowers over fruits.