I am starting daily movie screenings for a group (details inside). Which movie should be the first?

I am part of a theatre group and the only one in the group pursuing filmmaking as a career. We have decided to start film screenings for the group. Since its my department, I will be planning the whole thing.

The group members are not much acquainted with world cinema. I want to start out with something entertaining 'cause the last thing I want to do is introduce my sessions as boring.

Also, what do you people suggest should me my approach to the whole thing. How to plan, which movies to choose etc.

I am open to questions.