After a little bit of research, and considering that this is a month with Patrick's Day around the corner, these are the movies they came up with considering the months theme.
1. Leprechaun. 1993
An evil, sadistic Leprechaun goes on a killing rampage in search of his beloved pot of gold.
2. Halloween 3 (Season of the Witch). 1982
Kids all over America want Silver Shamrock masks for Halloween. Doctor Daniel Challis seeks to uncover a plot by Silver Shamrock owner Conal Cochran.
3. Interview with a Vampire. 1994