The Hollywood Party may be over, but you can still access two of the three movie sets! You can access Club Penguin High 3 and High Speed Getaway.
To access Club Penguin High 3, login to Club Penguin with this link.
To access High Speed Getaway, login to Club Penguin with this link.
Enjoy it while it lasts!
Thanks to Chilly573 for the reminder about this!