06/06/2010 05:12 am ET | Updated May 25, 2011

Boxer, Feinstein Weigh In Against Movie Futures Trading

The forces opposing two new movie futures trading markets gathered powerful congressional allies Tuesday.

California Sens. Dianne Feinstein and Barbara Boxer are among a number of legislators filing separate letters to the Commodity Futures Trading Commission, calling for approval delays.

That regulating body is mulling two futures trading systems established by financial giant Cantor Fitzgerald and Media Derivatives, both based on the box-office performance of major motion pictures.

The commission is expected to make a decision later this month as to whether the trading systems can go live later.