Jennifer Aniston's sudden blast against big-budget Marvel movies was actually a nasty sneak ambush on career and romance rival Angelina Jolie!

The semi-disguised attack was the latest explosion in the ferocious 15-year feud triggered when Maleficent movie witch Angie stole Jen's then-hubby Brad Pitt during filming of Mr. & Mrs. Smith.

Sources say the 50-year-old Friends beauty was a direct dig at Angie, 44, who stars as superhero Thena in Marvel's Eternals, now shooting on a London soundstage.

Get the latest issue of GLOBE Magazine today to read more about Jennifer Aniston's continued rivalry with Angelina Jolie.