I'm no copyright lawyer, but it looks like to me that you are wrong in the U.S.:

http://www.copyright.gov/title17/92chap2.html

> 201. (b) Works Made for Hire. — In the case of a work made for hire, the employer or other person for whom the work was prepared is considered the author for purposes of this title, and, unless the parties have expressly agreed otherwise in a written instrument signed by them, owns all of the rights comprised in the copyright.

> 203. (a) Conditions for Termination. — In the case of any work other than a work made for hire, the exclusive or nonexclusive grant of a transfer or license of copyright or of any right under a copyright, executed by the author on or after January 1, 1978, otherwise than by will, is subject to termination under the following conditions: