The Movie Connection Game (January 2015 Edition)

How are Karloff and Pacino related?
In this edition of the connection game, you will once again be given a pair or trio of films or performers. Your task is to find the common connection. It could be anything--two stars who acted in the same movie, two movies that share a common theme, etc. As always, don't answer all the questions so others can play, too. There is a single best answer for each question.

1. The film Ski Party and the TV series Batman.

2. Cary Grant and David Niven.

3. Disney's Alice in Wonderland and Monty Python and the Holy Grail.

4. Claudia Cardinale and Elke Sommer.

5. The films Soylent Green and Idaho Transfer.  

6. Rod Taylor and James Brolin.

7. Barbara Shelley and Tony Randall. 

8. To Kill a Mockingbird and Saturday Night Fever

9. Charles Bronson and Ray Milland.

10. Sean Connery and Errol Flynn.

11. Bonita Granville and Parker Stevenson.

12. George C. Scott and Orson Welles.

13. Akira Kurosawa's Throne of Blood and Forbidden Planet.

14. Al Pacino and Boris Karloff. 

15. Michael Rennie and Harrison Ford.