1
general::
Also, cause a stir. Give rise to a disturbance, raise a fuss. For example, The opening debate was so bitter it caused a commotion in the legislature, or Her entrance always caused a stir.
American Heritage Idioms
2
general::
Phrase(s): cause a commotion
Go to cause (quite a) stir.
McGrawhill's American Idioms And Phrasal Verbs