Credit: Vincenzo Landi/

Red hot!

The temperature in Rome hit 86 degrees on Monday, but it was Penelope Cruz who was steaming up the set of Woody Allen's new movie, The Bop Decameron.

The actress, 37, was spotted in a skin-tight red and black  Dolce & Gabbana mini dress with scarlet peep-toe heels and a matching purse.

The Spanish beauty -- who welcomed son Leo with husband Javier Bardem on January 22 -- has been flaunting her incredible post-baby body in a series of figure-hugging dresses since February's Academy Awards.

How did the brunette stunner get back into shape so quickly? "I love ballet and it's a little boring for me to go to the gym because I'm used to the dancing discipline," Cruz tells The Daily Mirror. "It's really hard but much more fun."

The Oscar winner hasn't skimped on her favorite foods, either. "I love Spanish food. My diet is the Mediterranean diet, which is good food. I eat well, but I try to eat healthy."