Martina Navratilova has filed suit in federal court to block a gay-friendly credit card company from continuing to use her image in its promotions, but the card company has now fired back with counterclaims that accuse Navratilova of lodging false accusations in an attempt to ‘destroy’ the company, according to an article on Law.com. Conshohocken, Penn.-based Do Tell Inc. disputes some of Navratilova’s most basic allegations and adds counterclaims that accuse Navratilova of breaching her fiduciary duty as an officer of the company.

On April 21, from 7-9 p.m., Judith Markowitz, author of The Gay Detective Novel, continues her series called dyke-tectives and gay dicks, with a focus is on R.D. Zimmerman’s Todd Mill series (starting with Closet). The event is at Gerber/Hart Library, 1127 W. Granville. For more information call (773) 381-8030 or visit www.gerberhart.org.

On April 22, Chicago Filmmakers, 5243 N. Clark, will present an evening with local filmmaker H.D. Motyl. Admission is $7. For more info, call (773) 293-1447.