Roadside Attractions has nabbed U.S. rights to R.W. Goodwin’s comedy sci-fi pic “Alien Trespass” ahead of its preem at the Palm Springs Intl. Film Festival. Roadside will open the film in 22 markets on April 3.Starring Eric McCormack (“Will and Grace”), film is a homage to alien invasion films of the 1950s. Goodwin is no stranger to the genre, having helmed and exec produced multiple episodes of “The X-Files.” Deal was negotiated for Roadside by Greg Bernstein with Gary Barkin repping the filmmakers.