Madonna is serviceable in some roles. Playing herself works best. Her fresh style and confidence in Desperately Seeking Susan led folks to believe she had acting chops. Sadly, acting is not in her wheelhouse.
Vulnerability, the most vital tool in the arsenal of a great actor, is not a strength of Madonna's. And I say that as a fan. She calculates everything. The richest actors find moments in vulnerability that Madonna can't access.
She also doesn't like to abdicate her power. She's so in her head and worried about how she is being filmed, what the director is thinking and what the final product is like. She has said that being in the present is very hard for her. Again, another requirement for an effective actor. She wants to give her input when it's not appropriate or warranted. She can't trust directors.
That being said she was always and I mean always compelling in music videos. She knows how to nail those performances. I think it was why she was so successful in Evita. I loved her performance in Evita and I think Patti was cruel to say that Madonna killed the movie.
"The sexual energy between the mother and son really concerns me!"-random woman behind me at Next to Normal
"I want to meet him after and bang him!"-random woman who exposed her breasts at Rock of Ages, referring to James Carpinello