ImportError: No module named scipy

After running pip install moviebox on a Mac with Python 2.7 I get the following error when trying to run it:

Traceback (most recent call last):
  File "/usr/local/bin/moviebox", line 7, in <module>
    from moviebox.cli import main
  File "/usr/local/lib/python2.7/site-packages/moviebox/cli.py", line 6, in <module>
    from .recommender import recommender
  File "/usr/local/lib/python2.7/site-packages/moviebox/recommender.py", line 3, in <module>
    from .tfidf import trainEngine, getSimilarities
  File "/usr/local/lib/python2.7/site-packages/moviebox/tfidf.py", line 5, in <module>
    from sklearn.metrics.pairwise import linear_kernel
  File "/usr/local/lib/python2.7/site-packages/sklearn/__init__.py", line 134, in <module>
    from .base import clone
  File "/usr/local/lib/python2.7/site-packages/sklearn/base.py", line 11, in <module>
    from scipy import sparse
ImportError: No module named scipy

Running pip install scipy fixes the error.