Yes but you must activate FP within PL to get at the features. To do that in the Windows version click:
Help | DxO FilmPack | Activate FilmPack
then enter the code you were sent when you bought FP.
Having done that, check that the FP palette is visible by clicking:
Palettes
and ensuring that the line for DxO FilmPack is ticked.
On a Mac the steps are similar but I use Windows so can’t be more specific.