Write down names of actors and movies on a big poster board, cut and put them all over the room.

Make up a trivia game with questions about movies, actors, etc. For prizes, you can make "oscars".

Cut a piece of a cardboard and draw a tacky picture that resembles the "oscar" and write something like:

This award goes to (the winner's name) for being the best movie buff.

Go to a cheap store or a flea market where they sell items that has to do with movies and present them as prizes or decorations.