wrap party takes place in a suite on an upper floor  of the Chateau Marmont (we see Ian order more champagne for the  "penthouse suite", and the view from the balcony is clearly an upper  floor). Yet when Sam storms out of the suite, then runs downstairs  while arguing with Jane, they only descend one flight before  reaching the lobby. There is a cut, but the dialog implies that no  time was cut from their descent.