Rivers made the comments with daughter Melissa while the two discussed which stars they were looking forward to seeing at tomorrow night's Academy Award ceremony.
"I would like to take Jennifer Aniston and put her hair over her f**king face," Rivers told Us Weekly. "I'm so bored with her and her stupid movies.
"They're all the same, I don't know how they get financed," the comedienne added.
Aniston's latest film, the romantic comedy Just Go With It, topped the US box office earlier this month.
Both Joan and Melissa Rivers are currently starring in a new reality series for WeTV called Joan And Melissa: Joan Knows Best.