This may be a first — Marc Anthony says working with wife Jennifer Lopez was easy:

“Oh, I got calls,” the 37-year-old actor-singer tells Fashion Rocks magazine. “Just friends, you know, giving me the heads-up about working with your partner.”

“I thought, jeez, that’s like the fourth call I got this month! What are they preparing me for?” he says. “I thought it was going to be World War III, when, in fact, it was Club Med.”

In their new movie “El Cantante” scheduled to hit theaters August 3rd, Anthony plays Lavoe, a talented but troubled Puerto Rican singer. Lopez portrays Lavoe’s long-suffering wife, Puchi.