It's possible that:
* There may be multiple people named Maria Smith. To be more specific, it would be helpful to know if there is any additional information about this person, such as her birth year, nationality, or any other notable works she has been involved in.
* The name may be misspelled. Double-check the spelling of the name.
* She may be a lesser-known actress. Many talented individuals work in the entertainment industry with limited public exposure.
To help me identify the specific Maria Smith you are referring to, please provide more details.